IN the great ranges of investigation which bear most directly upon the origin of man, there are two in which Science within the last few years has gained final victories. The significance of these in changing, and ultimately in reversing, one of the greatest currents of theological thought, can hardly be overestimated; not even the tide set in motion by Cusa, Copernicus, and Galileo was so powerful to bring in a new epoch of belief.
PROFESSOR OF PHYSICS AND CHEMISTRY IN THE PHILADELPHIA MANUAL TRAINING SCHOOL.
IV.—IN THE ATELIER OF A GLASS-WORKER.
THERE are few objects of manufacture which better than glass illustrate the immense preponderance in value of human labor over crude material. It is a substance which might serve economists as a parallel to their favorite illustration of the comparative values of a steel watch-spring and the bit of ironbearing earth from which it is wrought.
THE infinitely small particles of matter we call dust, though possessed of a form and structure which escape the naked eye, play important parts in the phenomena of nature. A certain kind of dust has the power of decomposing organic bodies and bringing about in them definite changes known as putrefaction, while other kinds exert a baneful influence on health, and act as a source of infectious diseases.
IV. THE SENTIMENT OF JUSTICE.—Acceptance of the doctrine of organic evolution determines certain ethical conceptions. The doctrine implies that the numerous organs in each of the innumerable species of animals, have been either directly or indirectly molded into fitness for the requirements of life by constant converse with those requirements.
EVIDENCES OF GLACIAL ACTION IN SOUTHEASTERN CONNECTICUT.
HON. DAVID A. WELLS
REMARKABLE evidences of glacial action in southeastern Connecticut seem thus far to have almost entirely escaped the attention of geologists. In fact, the most superficial survey of the section of country bordering on Long Island and Fisher’s Island Sounds, and extending from Connecticut River on the west to Watch Hill, and perhaps to a point farther east, in Rhode Island, can hardly fail to produce a conviction that it was in this region that one, at least, of the great New England glaciers debouched into the waters of the Atlantic; unloading or dropping, as its progress was arrested by the ocean, or as it subsequently gradually wasted and receded by change of climate, a vast multitude of bowlders, of which a very large proportion are of uncommon magnitude.
IT is a significant commentary on the actual state of our culture that architecture, the most ancient and grandest of the arts, is to-day the least understood, the least satisfactory, the least appreciated of all the achievements of our civilization.
IN the January number of The Popular Science Monthly there was an article by Benjamin Reece on Public Schools as affecting Crime and Vice. In that article Mr. Reece mentions the fact that “in the decade ending with 1880, population having increased thirty per cent and illiteracy only ten per cent, the number of criminals present the alarming increase of eighty-two per cent.”
WITH LETTERS FROM HERBERT SPENCER, PROF. HUXLEY, AND DR. LYMAN ABBOTT.
LETTER OF HERBERT SPENCER.
LETTER OF PROFESSOR HUXLEY.
LETTER OF REV. LYMAN ABBOTT, D. D.
JAMES A. SKILTON
IN the sacred literature of the Christian Church a word appears that to its founder and to his immediate followers evidently had a deep significance, the nature of which was at least partially concealed from his later followers, and is still concealed from those of the present day, through admitted mistranslation.
TIN, which every one knows, but which few, except men of science and metallurgists, are acquainted with, is one of the most precious and most interesting metals. After gold and silver, it is intrinsically the most precious of those in use. It is nearly of the same color and almost as bright as silver, but has less resistance and is less valuable.
A FEW of the many groundless beliefs concerning both the useful and the injurious powers of certain reptiles and batrachians have been already enumerated, but such fictions are by no means confined to these uncanny-looking tribes of animals.
THE cements now in the market are of two kinds: natural, made directly from stone; and artificial, commonly called Portland cement. The manufacture of the former consists simply in burning and grinding the cement stone, a magnesian limestone containing about fifteen per cent of silica and a little silicate of alumina.
ON the 23d of January, 1878, was celebrated at the University of Liège, by the scientific men of Belgium and others representing neighboring European states and more distant countries, the fortieth anniversary of the professorship of Theodor Schwann.
DEAR SIR: In the April number of your magazine you say that a sentence quoted from me by Bishop Vincent in The Chautauquan “is absolutely without foundation.” The objectionable sentence is, “Some counselors, like Herbert Spencer, advise us to follow our own self-interest, without concern for others, with the assurance that all will thus be happier, because more independent.”
WE print in our present number a letter from President David J. Hill, of the Baptist University of Rochester, in which an attempt is made to justify the statement contained in his book on the Social Influence of Christianity, and reproduced, with the sanction of Bishop Vincent, in The Chautauquan, that Mr. Spencer “advises us to follow our own self-interest, without concern for others, with the assurance that all will thus be happier, because more independent.”
THERE are only a few books that have the qualities of an originality and freshness that never wear out. Darwin’s Naturalist’s Voyage must be conceded a prominent place in the list. It has been a little more than fifty years since it was first published.
Evolution of the Fish-Hook.—“The Evolution of the Fishing-Hook” has been made the subject of a study by Mr. Edward Lovett, who discerns the first implement of the kind in the flint “gorges,” and some of the flints, which are called “knives,” of the palæolithic “finds.”
DR. S. WEIR MITCHELL, of Philadelphia, recently received from a woman-patient the singular present of a cord of white-oak wood, chopped down and sawed up by her own hands. He had recommended to her an active, outdoor life in the woods for nervous invalidism.