On the Origin of Species By Means of Natural Selection, or, the Preservation of Favored Races in the Struggle for Life. When on board H.M.S. ‘Beagle,’ as naturalist, I was much struck with certain facts in the distribution of the inhabitants of South America, and in the geological relations of the present to the past […]

I have stated in the preface to the first Edition of this work, and in the “Zoology of the Voyage of the Beagle,” that it was in consequence of a wish expressed by Captain Fitz Roy, of having some scientific person on board, accompanied by an offer from him of giving up part of his […]

The annual labour of every nation is the fund which originally supplies it with all the necessaries and conveniencies of life which it annually consumes, and which consist always either in the immediate produce of that labour, or in what is purchased with that produce from other nations. According, therefore, as this produce, or what […]

It gives me great pleasure to accept the invitation of the publishers to write a word of introduction for Mr. Rahn’s excellent translation of “Der Kluge Hans”, a book which in the original has been but little known to American readers. The present wave of interest in animal life and behavior renders its appearance peculiarly […]

Few, especially in this country, realize that while Freudian themes have rarely found a place on the programs of the American Psychological Association, they have attracted great and growing attention and found frequent elaboration by students of literature, history, biography, sociology, morals and aesthetics, anthropology, education, and religion. They have given the world a new […]

The same volume I published an essay on Scientific Humanism (a close approximation to P£re Teilhard’s Neo-Humanism) f in which I independently anticipated the tide of Pere Teilhard’s great book by describing humanity as a phenomenon, to be studied and analysed by scientific methods. Soon after the first World War, in Essays of a Biologist, […]

“The reasonings about the wonderful and intricate operations of Nature are so full of uncertainty, that, as the Wise-man truly observes, hardly do we guess aright at the things jhat are upon earth, and with labour do we find the things that are before us.” Stephen Hales, Vegetable Staticks (1727), p. 318, 1738. “Ever since […]

The National Science Foundation has rendered a useful service in reprinting Science, the Endless Frontier as part of its tenth anniversary observance. The Report, as well as the studies that supported it, represents the collective efforts of a group of distinguished scientists and other scholars who brought their special experience and knowledge to bear on […]

The theory of relativity is intimately connected with the theory of space and time. I shall therefore begin with a brief investigation of the origin of our ideas of space and time, although in doing so I know that I introduce a controversial subject. The object of all science, whether natural science or psychology, is […]

This book contains an exposition and various applications of a mathematical theory of games. The theory has been developed by one of us since 1928 and is now published for the first time in its entirety. The applications are of two kinds: On the one hand to games in the proper sense, on the other […]