THERE are now dawnings of two possible solutions of the problem of aerial navigation; a problem which has impassioned men for perhaps 4,000 or 5,000 years. Navigable balloons have recently been developed to what is believed to be nearly the limit of their efficiency, and after three intelligent but unfortunate attempts by others, a successful dynamic flying machine seems to have been produced by the Messrs.
NO tribe of savages has ever been found that did not present some evidence of the existence of individual property among them. By force of character and personal prowess the chief acquires possessions of increasing variety. Where compulsion can not be directly applied resort is had to exchange, and this at once develops the need for measurement of values.
THE CONSERVATION OF ENERGY IN THOSE OF ADVANCING YEARS. II.
Developmental Processes in Ageing Tissues; Physiology of Decadence. Senile Involution.
J. MADISON TAYLOR
THE brevity of this communication does not warrant a discussion of senility from the standpoint of the physician, but rather a presentation of such facts to the person who is growing old as may prove helpful and suggestive in postponing the more serious results of advancing years.
THE history of the Royal Prussian Academy of Science is in reality the history of the development of science in Prussia, one may say throughout the territory covered by the present German empire. Founded July 11, 1700, by the Elector Frederick III. of Brandenburg at the solicitation of his wife Sophie Charlotte and of Leibniz, it not only gave an impulse to scientific research and scholarly investigation in every department of learning in Berlin and throughout Prussia, but became the model after which other societies with similar aims in the German-speaking world were brought into existence.
A GREAT need in the formation of the collections of tropical and subtropical plants of the New York Botanical Garden and else-where in the United States has been a suitable place in the American tropics where seeds could be germinated and cuttings and seedlings grown under natural conditions for periods up to two or three years, before their transportation.
EDUCATION is one of the most important undertakings of life. Of the four great institutions by means of which society accomplishes its purposes, the home, school, church and state, the institution which reduces education to systematic form is one.
IT is a misfortune frequently lamented that new truth, the most precious attainment of each generation, is also the most unwelcome. We do not hasten to sweep out our stock of laboriously collected ideas, even after the worthlessness of the assortment has been declared.
VEGETARIANISM, as the term is popularly understood at the present time, is a system of living which teaches that the food of man should be derived directly from the plant world. Considered in the light of its history, however, vegetarianism involves something more than a mere dietetic program.
TOKYO TEIKOKU DAIGAKU (IMPERIAL UNIVERSITY OF TOKYO).
IN the recent outburst of literature upon Japan and things Japanese, one can not help feeling as he surveys the field that the European has but a scanty idea of the opportunities which the young Japanese enjoys for securing a thorough grounding in the learning of western nations.
NEW BUILDINGS FOR THE DEPARTMENT OF AGRICULTURE AT WASHINGTON.
THE centenary of the death of Kant was commemorated on February 12. There was a special celebration at Königsberg, where the philosopher spent his whole life; a monument is planned for Berlin, and a Kant Society has been formed in Germany. It would probably be difficult for most readers of a scientific journal to explain why Kant is one of the great men of the world, and next to Aristotle the most honored philosopher.