Issue: 19090701

Thursday, July 1, 1909
JULY, 1909
3
True
75
Friday, November 28, 2014

Articles
cover
2
2,3,4,5
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THE POPULAR SCIENCE MONTHLY
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PopularScience_19090701_0075_003_0001.xml
article
5
5,6,7,8,9,10,11,12,13,14,15,16,17,18,19
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NATURAL RESISTANCE TO INFECTIOUS DISEASE AND ITS REINFORCEMENT.
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DR. SIMON FLEXNER
COMMON observations early indicated that individuals of all animal species, and of the human species especially, were very unequally subject to disease. This elementary fact is impressed every day upon the thoughtful and has been, from the earliest times, the object of much ingenious speculation.
PopularScience_19090701_0075_003_0002.xml
article
20
20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40
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SOME PRACTICAL ASPECTS OF GYROSTATIC ACTION
GYROSTATIC ACTION OF THE FLY-WHEEL OF THE AUTOMOBILE ENGINE
GYROSTATIC ACTION ON BOARD SHIP
GYROSTATIC ACTION OF A ROLLING DISK
GYROSTATIC ACTION OF THE BOOMERANG
THE DEVICE OF OTTO SCHLICK FOR THE PREVENTION OF ROLLING OF SHIPS AT SEA
THE BRENNAN MONORAIL CAR
CALCULATION OF TORQUE-REACTION DUE TO PRECESSION
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PROFESSOR W. S. FRANKLIN
THE Brennan monorail car and the Schlick device for the prevention of rolling of ships at sea have recently attracted popular attention to the gyrostat, and gyrostatic action has recently become vitally interesting to a large group of men because an automobile-engine fly-wheel shows serious gyrostatic reactions when the automobile rounds a curve rapidly or rises suddenly upon a bump in the road.
PopularScience_19090701_0075_003_0003.xml
article
41
41,42,43,44,45,46,47,48
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JOSIAH WILLARD GIBBS AND HIS RELATION TO MODERN SCIENCE. III
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FIELDING H. GARRISON
Catalysis, Colloids and Chemical Purity.—When chemical change can be produced in a system by the mere presence of small quantities of another substance which itself usually remains unchanged at the end of the process, such an effect is called catalysis and the agent employed a catalytic agent.
PopularScience_19090701_0075_003_0004.xml
article
49
49,50,51,52,53,54,55
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A REVOLUTION IN DENTISTRY
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RICHARD COLE NEWTON
HAVE the dentists waked up? Some of them have. A new order of the “Knights of the Forceps” has been formed, called the “Orthodontists” (tooth straighteners). At last accounts there were sixty of them in America, as compared to 50,000 simple dentists.
PopularScience_19090701_0075_003_0005.xml
article
56
56,57,58,59,60,61,62,63,64
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THE ORIGIN OF THE NERVOUS SYSTEM AND ITS APPROPRIATION OF EFFECTORS
I. INDEPENDENT EFFECTORS1
REFERENCES
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G. H. PARKER
THE physiological unit in the operations of the nervous system is the reflex. Broadly understood, this consists of the chain of consequences that begins with the reception of a stimulus on the surface of the animal and, leading through the central nervous organs, ends in the excitation of a reaction by some such organ as a muscle.
PopularScience_19090701_0075_003_0006.xml
article
65
65,66,67,68,69,70,71,72,73,74
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THE PREPARATION FOR THE STUDY OF MEDICINE
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FREDERIC T. LEWIS
Those who intend to study medicine are advised by the Medical Faculty to pay special attention to the study of Natural History, Chemistry, Physics, and the French and German languages, while in College. This sentence of advice is contained in the catalogue of Harvard University issued in 1874.
PopularScience_19090701_0075_003_0007.xml
article
75
75,76,77,78,79,80,81,82,83,84,85,86,87,88,89
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DARWINISM IN THE THEORY OF SOCIAL EVOLUTION
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FRANKLIN H. GIDDINGS
REVOLUTIONIZING as the life work of Charles Darwin was in the fields of biology and psychology, one may doubt if his writings disturbed the intellectual peace anywhere more profoundly than in the “Sweet Jerusalem” of pre-Darwinian social philosophy.
PopularScience_19090701_0075_003_0008.xml
article
90
90,91,92,93,94,95,96,97,98
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DARWIN’S INFLUENCE UPON PHILOSOPHY
I
II
III
IV
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PROFESSOR JOHN DEWEY
THAT the publication of the “Origin of Species” marked an epoch in the development of the natural sciences is well known to the layman. That the combination of the very words origin and species embodied an intellectual revolt and introduced a new intellectual temper is easily overlooked by the expert.
PopularScience_19090701_0075_003_0009.xml
article
99
99,100,101,102,103,104,105
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THE PROGRESS OF SCIENCE
THE COLLEGE AND THE STUDENT
THE NEW BUILDINGS OF THE UNIVERSITY OF PITTSBURGH
THE PERCY SLADEN MEMORIAL FUND
SCIENTIFIC ITEMS
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AT this commencement season university presidents and others are likely to make addresses to academic audiences and the problems of the college and of the college student are likely to be subjects for comment in the daily papers and the monthly magazines.
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