HE WAS SO young that he scarcely had accurate control of his tiny legs. Long, yellow curls nestled to his neck and hung about his shoulders. And he gurgled gleefully as the barber, with his scissors, snipped off curl after curl. Over in the corner the mother watched, a timid, half-frightened expression on her face.
Stealthy poisons are to be found in at least 92 percent of illegal liquor—What they do to the human body—An impartial investigation into the medical and chemical aspects of prohibition
The Real Problem of Prohibition
A NEW chemical warfare is ravaging the bodies of millions of Americans, threatening the general health of the nation. To combat it seems a task more difficult than protecting an army against military poison gases. It challenges doctors and public health officials more than infant mortality, more than ordinary epidemics, more than keeping our milk, our drinking water and our food supplies free of pollution.
IF IT is true, as Sam Loyd observes, that "the successful ones are those who have a natural faculty for solving puzzles," then the number of successful people is increasing surprisingly every day. For each day's mail brings hundreds of additions to the thousands of POPULAR SCIENCE MONTHLY readers who are finding fascinating entertainment and profit in our great series of monthly $1,000 Picture Contests.
An expert answers the questions on cost, safety, and comfort that everybody wants to know before selecting and installing the new type of domestic heating equipment
Advice on Oil Burners
P. E. FANSLER
DOMESTIC oil burners are more discussed throughout the United States today than any other contributor to home comfort. Approximately 120,000 homes in which coal was used last winter will be heated with oil this year. Thousands of people are wondering just what an oil burner is; what it will do and what it will not do.
Barber Shops and Soda Fountains Are Provided in New Type of Railway Car
THIS new type of railway car provides all the luxuries of the modern hotel for the traveler by rail. Within a total length of eighty-three feet, these remarkable cars, ten of which have been built for the Northern Pacific, provide lounge rooms, card rooms, shower baths for both men and women, a fully equipped soft drink parlor, a barber shop, valet service and observation platform.
Photo-electric cell is working miracles in the long-distance transmission of pictures, and promises other wonderful achievements
H. C. DAVIS
A MAN walked into the offices of the Marconi Wireless Telegraph Company in London the other day, and there made out his personal check for $1,000, drawn on a New York trust company. Twenty minutes later that check, having traveled by radio across the Atlantic, was honored by a New York bank and deposited.
You Can Tell What a Man Really Is Say Graphologists—How They Read from the Way He Crosses His t’s, Secrets in Handwriting Quirks
WILLIAM J. WHITE
In the following article, an able reporter presents the results of a careful investigation of the secrets by which graphologists claim they can read a man's character in his handwriting. This art, while generally discredited by scientists, always has been a source of much interest and entertainment.
Spectacular Feat of 52-Year-Old Los Angeles Man Who Sailed 35,000 Miles, Alone, in Small Homemade Craft
G. B. SEYBOLD
A LEAN, tall man with bronzed skin, thick, gray hair and quizzical blue-gray eyes sat in the cabin of a little yawl anchored in Long Island Sound, near New York, a few days ago, and told me of one of the most spectacular feats on the high seas in this generation.
Inventions of Edison and Westinghouse Sold As Junk When Patent Office Cleans House
A Predecessor of the Tractor Drawing, from the original patent papers in 1868, unearthed in the model sale, of a cart hauled by a "steam man" controlled by levers, invented by two Newark, N. J., men
Millions of Invisible Stars
EDGAR C. WHEELER
MAX COHÉN stood beside his pushcart at the curb on Orchard street and called out his wares: "Here they are. . . These famous inventions! . . . Thomas Edeeson! . . . Who wants inventions?" It was a Saturday afternoon; and Saturday is the teeming day along this picturesque street on New York's East Side.
BEFORE long, experts say, your car may ride on tires of oil! In place of india-rubber from the East Indies may be substituted synthetic or artificial rubber from the waste of petroleum wells, a new wonder of the chemists’ laboratories. Just as chemists have extracted dyes, perfumes, flavors, from coal formerly wasted, so now they are at work to extract value in by-products from petroleum.
A score of unusual ways our readers have found to keep comfortable in summer—An announcement of the winners in our "Hot Weather Hints Contest"
THE PRIZE WINNERS in Our Hot Weather Hints Contest
Ten Ways to Keep Cool
WHAT is the best way to keep cool in hot weather? We asked this question in our April number, and offered prizes for useful and ingenious answers, believing that out of the thousands who swelter in the summer time there must be some who had found a way to beat the thermometer.
A New Quiz to Help Measure Your Powers of Observation—Other Fascinating Tests
Do You Think Clearly?
Can You Connect Ideas?
Questions about the Test Picture on Page 29
THE drawing on this page, reproduced by courtesy of the Bureau of Public Personnel Administration, offers a test of your powers of observation. When you look at a scene, how much of it do you really see? Study the picture for a minute and a half.
Thrilling Stories of a Famous "Law and Order" Ship of the Far North
H. H. DUNN
ON AN ice field projecting from the shores of Kotzebue Sound, six men and three women are seal hunting. Without a sound the great ice pan slips away from the shore and out into the current that rushes through Bering Strait and on to the Pole. Their hunting finished, the men and women—nine black dots on fifty square miles of ice—pack their seals and start for home.
Remember That a "Regular 38" Suit May Not Always Fit a Man with a 38-Inch Chest— How to Order Haberdashery
COULD you determine your own clothing sizes? If you didn’t know the size of your shoes, could you buy the right pair of socks for yourself simply by measuring the length of your foot? If your wife should go shopping tomorrow and volunteer to buy the gloves you’ve been needing, could you give her the correct size?
How America’s Pioneer Inventor,Robbed of His Cotton Gin, Made the World Rich
She’s a Real Water Sprite!
Solutions to Last Month’s Sam Loyd Puzzles
ROBERT E. MARTIN
IN THE year 1792, at Mulberry Grove, a broad plantation near Savannah, Ga., there lived a woman of motherly hospitality —the widow of General Nathanael Greene of Revolutionary fame. Into her home she had welcomed a tall young man of 27 years who, having just graduated from Yale College, found himself stranded in a strange city, penniless and without friends.
Giant Twin Tubes Will Accommodate 46,000 Automobiles Daily
ONE of the most marvelous engineering feats of our day is rapidly approaching completion. Within a few weeks the great Holland Tunnel for vehicular traffic under the Hudson river will be ready for its first tests. Within a year it is expected to be in full operation, accommodating 46,000 cars a day.
Upkeep Costs Can Be Cut by Making Your Repairs on a Monthly Schedule
John R. McMahon
UPKEEP is a little brother to Overhead. They're a devious pair whom most people prefer to ignore. Yet in various guises they intrude themselves upon us all the time and help to keep our pocketbooks lean. Not content with their legitimate prey, they porch-climb, as it were, the simplest home.
These Ten-Minute Exercises Will Make a New Man of You
A HEALTHY, efficient body is the first need of every young man who intends to make a success of his life. He needs it to enable him to do his work well, and also to enjoy the rewards won by his work. The young man who has a naturally good body should start now to keep it good; the young man to whom nature has been less kind should begin now to educate his muscles to be the useful servants of his mind.
WHAT are the factors that make a man a success or a failure? On this question, which perhaps interests us all more than any other, science of late has been altering our opinions radically. A long-prevalent idea has been that the oniy child in a family suffers a decided handicap as far as success is concerned.
IF YOU are tempted to complain of the bread and biscuits your wife makes, go slow. The trouble may be not in the baking, but in the flour. For one thing, the flour may be ground too fine. Two chemists of the Food Research Institute at Stanford University, Drs. C. L. Alsberg and E. P. Griffing, have just discovered that too much grinding injures the starch in the grain. As a result, bread rises too fast at first, and then falls. Excessive grinding also injures the gluten, which makes bread dough elastic, and then the dough is difficult to knead.
THERE is at least one place in the world that is even noisier than New York City's busiest street intersection, and that place is Niagara Falls. Recent tests made with an audiometer, a new noise-measuring instrument perfected by the Bell Telephone Laboratories, showed that the tumult of the cataract at the mouth of the Cave of the Winds would smother the roar and clatter of trains and cars at the intersection of Sixth avenue, Broadway, and Thirty-fourth street.
AGAIN the microscope and the test tube have rendered valiant service in the war against man's great enemy, disease. As this is written there comes the announcement from Detroit that Dr. N. S. Ferry, bacteriologist, and L. W. Fisher, chemist, have discovered the tiny organism which causes measles, and with it have succeeded in producing an effective measles antitoxin.
A MARVELOUS winged motor boat, called the Sea Flea, that skims over the water like a flying fish at seventy-five miles an hour, was built to attempt to cross the Atlantic from Marseilles to Pernambuco, South America. Launched in France, on its initial test it is said to have traveled sixty miles an hour between Marseilles and Algiers.
OUT on the farthest southwestern point of the United States in the Pacific, Uncle Sam is building the finest lighthouse station in the world. The new institution is so far removed from the oldtime lighthouse that there is really no comparison except in that both have a light to guide mariners.
IF A merchant wanted a few full-color photographs of some merchandise so his salesmen would not have to carry samples when calling on customers, he would have quite a job getting them at a reasonable price. The printer could supply him only after spending hundreds of dollars for special color plates to run off the prints desired.
FOR great auditoriums, churches, theaters, hotels and other places where a large volume of tone is desired, the mammoth talking machine at the right, which plays an ordinary-sized record, has been recently built. Its huge horn, twenty feet long, is ingeniously folded so that the whole instrument is built into a cabinet about eight feet wide, four feet deep and eleven feet high.
ONCE, when a person wanted to know what a city was like, he had to consult a flat map. Now he can see it just as it is in a small model which is an exact replica in every particular. To get an idea of how a new building was going to look when completed, you had to consult drawings, plans and blueprints.
AN INGENIOUS plan to provide electric power for Palestine, devised by M. Imbeaux, a French engineer, is illustrated in the drawing at the left. By electrically operated pumps, M. Imbeaux would bring the waters of the Mediterranean up to a reservoir to be built on the top of the ridge of highlands that separate the valley of the Jordan from the coast.
TO KEEP rivers, lakes and ponds clear of weeds that seriously interfere with boating, fishing, and bathing in the summer, and spoil the ice crop in winter, C. L. Hockney, of Silver Lake, Wis., has invented the under-water weed cutter below.
IN SAN DIEGO, Calif., is a restaurant called the Banquet Cafe. Its window bears the invitation to come in and consume "All You Can Eat and Drink." Inside, the lunch counter is apparently ordinary in all respects except that it is circular. But you soon discover it is decidedly out of the ordinary.
FOR golfers, spikes that clamp on like skates, shown below, change any shoes into golfing shoes. They can be used, too, by hikers, hunters, or workmen who need a firm grip on smooth or slippery surfaces. The plates are adjustable to any size of shoes.
THERE'S not enough of Florida to go around, so they're making more of it daily, taking it out of the sea. If you have sufficient money, you can order an island all your own, and in an amazingly short time you can begin building your house on it. The exceptionally fine airplane photograph at the left shows three marvelous manufactured islands near Miami.
A COMPACT one-pound trouble shooter, which can be operated from any lamp socket, may be seen above. It has been devised for home use, to help you find what is wrong with your radio, automobile, flat iron, or any other electrical apparatus. It can be used to locate short, grounded or open circuits, and to detect loose connections.
THOSE wonderful were days not so many years ago, when great sailing vessels were queens of the seas. There was adventure and romance aplenty then. Captain Frederick Williamson of the Sailors’ Snug Harbor, home for veteran seamen on Staten Island, N. Y., loves to recall them by building models of ships of those days.
YOU may perhaps know a good deal about nature and her daily wonders. But do you know all that well-informed persons should? Here is a good test of your knowledge. Below we print twelve questions that deal with common, everyday, natural facts that everyone should know.
DURING a bowling match, the soles of the shoes often become slippery and slow up a player’s game considerably, making him miss easy shots. To overcome this difficulty, a special overshoe for bowlers has been devised by a Highland Park, Mich., lover of the game.
THE old-fashioned plank crossing at the intersections of railroads and highways will soon give place, it is said, to a new type recently developed by a mid-west railroad. The new crossing, shown above, is constructed of discarded steel rails, placed closely together and embedded in a mixture of asphalt and crushed rock, after first being spiked to heavy timbers instead of the usual ties.
AN INDIAN garden and village are soon to be erected in the Bronx, New York City, as part of the Museum of the American Indian. The first wing to be built will contain a museum of Indian relics. When the whole building is completed, the open patio in the center will be occupied by a botanical garden of plants used by North American Indians as food and as medicine.
TO BE ready for the total eclipse of the sun that occurred early this year, groups of scientists from all over the world spent months of preparation in Sumatra. Much of this time was spent in setting up and building shelters for their delicate instruments from the glaring sun and torrential rains of the tropics.
TUNE-IN and get a cigarette. Turning the dial to either the right or left in this novel humidor, which is built to resemble a radio cabinet, brings a cigarette tumbling forth. It is large enough to hold 100 cigarettes. The interior of this radio cigarette box is divided into two compartments. The one to the right holds the cigarettes, while the one at the left contains the mechanism connected with the dialing system.
JUDAS, a California Angora goat, deserves his name. He has betrayed 250,000 sheep in his time, leading them to their deaths in the slaughter yards. So unwary are sheep that, when Judas leads, they confidently follow him, never to return.
FRENCH scientists have discovered a new use for grape seeds. They are extracting a lubricating oil from them. As soon as the grapes have been pressed, the seeds are removed from the skins and dried. They are then subjected to a process for removing their oil.
SHUTTING off the air will stop a fire at once, and any apparatus designed to do this is vitally important to the fireman. In a new design of fire extinguisher, shown at the left, there is no liquid. A combination of powder and carbonic gas is used instead.
A TYPEWRITER that is said to be capable of transcribing 5,000 Chinese ideographic signs, designed by a native of Shanghai, has been recently put on the market in China. It is claimed that with two months’ practice an educated Chinaman can acquire a speed of 2,000 characters an hour.
THIS inventor has the right idea. Lee Barton Williams, of Pittsburgh, Pa., has invented an automobile which, he claims, runs on air. The motor starts on gasoline, but after it has reached a speed of ten miles an hour the gasoline supply is shut off and the air starts to work.
AUTOMOBILE engineers say that the majority of cars that fail to give efficient service have been ruined by careless driving in the first thousand miles. Like a new pair of shoes, a new car must be "broken in," otherwise trouble is almost certain to develop.
TO FEED the birds from the house, the little car, left, which works back and forth on a cable, has been designed. Stocked with food at the window, it runs to the other end of the line, under the trees, where the birds gather. It is drawn back by a rope.
ELECTRICITY taken from the air supplies a farm in Anderson, Ind., with light and power practically without cost. During the dull winter months, C. E. Miller and W. T. Miller, with the aid of an electrician, William Maze, made the machine illustrated below, which the inventors claim is entirely automatic and generates electricity any time that there is a fair breeze.
CHICAGO policemen may soon look like knights of old, if the heads of the department decide to adopt the metal armor shown above, which has been under consideration for some time. It was manufactured by a Boston firm, and was designed to protect the police from the attacks of the modern holdup man.
IN ORDER that pigs may be readily identified after slaughter, and disputes as to ownership avoided in cooperative marketing, the United States Department of Agriculture urges farmers to tattoo their pigs. A new method of tattooing, said to be inexpensive, employs a metal holder in which phonograph needles are imbedded to form initials or numbers.
AN UNUSUAL, recently designed saw frame that has a pistol handle grip and can be used with many sizes of blades, is said to save time on jobs where it is hard to get at the work. A gap between the blade and the handle enables the user to reach around obstructions with it.
A TWO-CYLINDER aircraft engine employing heavy oil has been developed by the Navy Department, and if it proves as successful as tests seem to promise, a more powerful engine of the same type will be constructed. The new engine, invented by A. P. Attendu, is said to be of special value for dirigibles because its fuel is nearly noninflammable.
SO BEAUTIFUL are most of nature's designs that our craftsmen can do no better than to copy them. Nothing one could imagine for himself could be more wonderful, for instance, than the intricate spider's web. The illustration below shows how this has been used for the delicate design of a hand-wrought iron door.
A NOVEL idea in toothbrushes is illustrated above. It consists of a metal holder to which are fitted small brushes that can be removed when worn out and replaced with new ones. The brushes are tightly locked into the holder with a key, and cannot loosen or fall out.
Painting May Be Done Quickly with Portable Sprayer
CLEANING and brightening up the shop with paint may be done quickly with the portable blower and sprayer which is shown below. It consists of a heavy duty compressor run by electricity, a fifteen-gallon tank, a spray gun, and twenty-five feet of hose mounted on a steel truck.
RAIN or shine, Chicago golf fans on a trip by train to the South recently had their daily practice, under professional coaching. A putting course was laid out in a parlor car and a tournament held, as seen in the picture at the right. Driving nets were set up in a baggage car.
A BRUSH to keep the hair neat, a mirror to see whether the part is straight, both contained in one compact case, comprise a late novelty that many persons have found useful. It is small enough to slip in the pocket ready for instant use. The mirror is on the under side of the lid.
A NEW dye called neocyanin, which may prove extremely valuable to astronomers in photographing the hitherto invisible infra-red rays, has been developed recently by a great American photographic concern. The ordinary photographic plate is sensitive only to blue light and the shorter invisible ultra-violet rays.
JUST as tin drinking cups have given way to modern sanitary drinking fountains, so, it is confidently predicted, the paper or cloth towel is destined to be thrown in the discard by the new machine, shown at the right, that dries the face and hands quickly by electrically heated air.
THE use of metal equipment in the home is increasing all the time. Kitchen cabinets, tables, chairs, washing machines, and ironers have been in use for some time. Cupboards, too, of metal have been introduced with success. Beds of iron and steel are common.
A DEVICE that, it is claimed, enables a child to operate a four-foot broom usually requiring a strong man’s efforts, has been perfected by a San Francisco man. The broom is mounted on two rubber-tired wheels the height of the broom. Pushing down the handle throws the broom on the wheels and lifts it two or three inches off the floor.
SEVEN acres of lawn mowed in a day, and riding while doing it on an easy spring seat. That is the way this work is done these days. At the right is seen a new mower with a sulky attached, and, to provide even more comfort, the sulky is equipped with rubber pneumatic tires.
THE picturesque gondola of Venice is rapidly giving place to the more prosaic and speedier motor boat. It is doubtful whether the gondola will ever disappear entirely from the Venetian canals. For leisurely gliding along the Grand Canal and up the side canals, the gondola will always hold its own.
A Self-Basting Pressure Cooker; Other Helps for the Homemaker
Handle Will Not Char
A Self-Basting Cooker
Drains or Fills Tubs
To Protect Your Shoes
A Help for Frying
Deodorant for Ice Box
Prevents Breaking Loaf of Cake
A Collapsible Dryer
Curved Knife for Grapefruit
A Pliable Scraper
A Grater and Shredder
Table Hides Ironer
Tongs for Lifting
A New Potato Cutter
Roller Bearing Rings for Shower Curtains
New Type of Kettle Averts Scalding While Filling
Pie Crust Crimper and Vent Cutter
An Adjustable Toaster for an Open Fire
A general complaint against the wooden handles on coffeepots is that the lower part chars from the heat of the metal and finally breaks away from its support. With the lower crosspiece made of metal, the coffeepot handle which is shown at the right cannot scorch or burn, and hence lasts longer.
GOOD vacuum tubes are absolutely necessary to get worth-while radio reception. You can change the circuit, use different coils or condensers, or entirely rebuild the set and still bring in the broadcast music or speech; but no matter how you shift things around, your results still depend entirely on the vacuum tubes.
How to Get Good Reception despite Summer Disturbances
TO YOU, as well as to millions of others, radio has become a steady source of good music and entertainment. You no longer consider your radio receiver a novelty—a fascinating and uncanny piece of electrical machinery to play with in odd moments and to be forgotten the minute summer reception troubles interfere with broadcasting.
Installing Modern Transformers or Resistance-Coupled Units Gives Wonderful Tone
We Will Help You!
ALFRED P. LANE
SOMEHOW that radio receiver you bought or built three or four years ago doesn’t seem to sound as well as it used to. Probably you get the broadcast stations about as well as ever, but they sound tinny and the voices are either muffled or raspy. The chances are that nothing has gone bad in your set.
The fourteen-tube radio set, above, is now being used by G. D. Bricker, mining engineer, on his exploration tour in South America. It was constructed by Robert L. Gaston and Fred Jewell, who are shown giving the huge outfit a final inspection.
Designed for use on all cars built with hub caps threaded sixteen threads to the inch, which includes nearly all cars except the Ford and Chevrolet, the device shown below recuts crossed or battered threads as well as pulling wheels. The large bolt in the center is used to apply pressure to the end of the shaft while the other bolt adjusts the three threaded jaws to the correct diameter of axle This newest motoring help is ordinarily in a bracket on the dash where it serves as a dash light, but it can be instantly shifted to the hand and serves to illuminate it so that the driver behind will be sure to observe the signal at once This powerful shock absorber will appeal to the owner who likes to do his fitting himself, as a complete set of them can be fitted in about twenty minutes with the aid of ordinary wrenches.
Gus Points Out a Half Dozen of the Best Ways to Lock Up Your Car
"GOT your car back again, I see," said Gus Wilson as George Thatcher drove up to the Model Garage. "Yeah, what's left of it." replied Thatcher in a glum voice. "Those crooks sure did shoot this bus all to pieces in the two weeks they had it.
WHEN traveling in sections where gasoline stations are miles apart, it is wise to carry an emergency can of gasoline. Pouring from many styles of these cans is, however, not easy because of the location of the filler cap on the main tank. A simple solution of the problem is to use a section cut from an old inner tube, Fig. 1.
Old Art Has a Great Revival—How to Make Your Own Bow and Arrows— The New Target Games
THE boys on the Ohio river made their bows from the staves of sugar hogsheads; from hickory hoop poles; from steel ramrods of Civil War muskets; from barrel hoops or barrel staves; in fact, from anything they could lay their hands upon, that was springy.
You Can Be Both Builder and Skipper of This Easily Constructed Yet Speedy Sailboat
Making Small Wheels Quickly
Complete List of Blueprints
CAPT. E. ARMITAGE McCANN
SAILING a yacht model on pool, river, lake or sea is among the best of sports. Only those men—those very old men, indeed—in whom the bright fires of boyish enthusiasm have turned to ashes, may not agree with me; I know that all young and grown-up boys will.
I HAVE just made a zinc-topped kitchen table that is giving excellent service in our home. The advantages of a zinc-topped table over wood are that the top does not stain readily, is easy to clean, always looks well, and never needs refinishing.
It's a Comfortable Shelter for a Summer's Outing, Yet the Materials Cost Only $25
World Famous Naturalist Lends a Helping Hand
ERNEST THOMPSON SETON
A FRIEND of mine, who had charge of certain Y. M. C. A. activities, was planning for a new camp. He submitted his outline to me, as he knew I had long specialized in such things. The first item was "ten tents to hold eight men each—$160 apiece." "How is that?" he asked.
THIS easily made but beautiful little clock case can be constructed from scrap pieces of wood. A wood that insures an attractive-looking case is aromatic red cedar, but mahogany, walnut or any hard wood will serve very well. The diameter of the hole may be changed to fit the clock that is to be inserted.
Old Bill Straightens a Big Shaft And One of His Customers Shows Him a Key seating Kink
GRADUALLY the lathe came to a stop. A series of chalk marks Bob Laten had put on the shaft while it was revolving now stood revealed as a peculiar spiral along its length. "It’s a whole lot better than it was," remarked Ralph Jordan, who stood behind Laten’s shoulder watching his maneuvers.
MOVABLE block puzzles may be made of cigar box wood, of three-ply veneered stock, or of other thin material. The size and method of construction may be left to the judgment, skill, and resources of the maker. The puzzle consists simply of a shallow box to hold a number of flat blocks, which are moved about to form various designs or to place them in specified positions.
A MATTRESS for use on a small camp cot may be made from squares of excelsior packing, such as are found in egg cases, and cotton batting, inclosed in a khaki drill covering. The mattress is light and comfortable, and makes a small roll for packing.
THIS telephone cabinet may be made by anyone who is handy with tools. It consists of a box with a wall-board back that is set into the wall between two partition studs after the plaster has been cut out with a cold chisel and the laths severed with a compass saw.
How to Make One with Barrels That Will Last for Years
Likes Our Blueprints
HENRY S. LARABY
FIVE members of the Bayside Canoe Club were seated on the end of their dock, basking in the sunlight of the first really warm June day of a cool and backward season. "Well, boys," spoke up Fred Nelson, the club's commodore, "if we’re going to build that swimming float, we had better take a run over to Captain Graham’s and see if he has figured out a good plan for us to follow."
Getting Ready for Summer Cruising— Precautions against Break-downs— Hull Repairs
Sandpaper Block for Delicate Work
HENRY LOWE BROWNBACK
MOTOR BOATING is SO splendid and invigorating a sport that boat owners invariably take a keen personal interest in the repair and maintenance of their boats. A man may be willing to leave the upkeep of his auto entirely to a service station, but he feels his motor boat deserves that sympathetic handling and patient attention to details that no one but himself can give.
The Cause of Nervous Indigestion, Auto-Intoxication, Blood Poisoning
Stomach Ulceration —Cancer
An Important Book
OF ALL the things that injure health, straining the nerves is more dangerous than all others combined. It weakens the nerves, paralyzes the organic forces, plays havoc with the mind; and is the cause of innumerable dangerous ailments. Nerve strain is especially harmful to the stomach and bowels, causing nervous indigestion, sluggish bowels, and kindred disorders.
WHEN the rigging on your radio mast or flag pole breaks and repairs are needed at the top of the pole, the only solution often is to climb the pole or take it down. Not everyone is an accomplished pole climber, and even if you can climb, it is rather difficult to do any effective work at the top, such as unfouling the tackle or running a line through the block.
NOW that we have given those of our readers interested in making decorative ship models two sets of blueprints with which to work, we have prepared drawings to aid those who wish to build the type of ship model that will really sail. These drawings are incorporated in Blueprint No. 48 in the list below.
WATER GLASS is one of the chemicals that should be on hand in every home workshop. It can be obtained at any drug store. It is used universally as a preservative for eggs, but to the worker with tools and chemicals its greatest value lies in its fireproofing and cementing capacity.
FOR those who do their own house painting or even a limited amount of it, the paint kit illustrated is worth many times what it costs to make one, or, indeed, to have a kit made. The pail is divided so that two or three colors may be applied without getting down from the ladder.
TOOLS are extra hands and fingers, even though we call them lathes, planers, squares, or calipers. Every good mechanic is presumed to know the importance of accuracy. A lot of us make the mistake of telling the boss how valuable we are without actually showing him.
WHILE woodworkers are familiar with silver solder as a medium for joining band saws, its useful properties sometimes are overlooked by many mechanics. Silver solder is an alloy of about 70 percent silver and 30 copper, with sometimes other metals in small quantities.
A LETTER was received the other day addressed to Old Bill, the machine shop character whose mechanical shortcuts and shrewd observations have long been a feature of this department. It was as follows : I have a simple problem which I know you can solve quickly, although it is bothering me quite a bit.