THE PROGRESS OF SCIENCE 



311 



Physical Laboratory, erected and 

 equipped by Mr. S. S. Palmer, and 

 endowed with $200,000 by Mr. D. B. 

 Jones and Mr. T. D. Jones, is ad- 

 mirably adapted for work in physics 

 and electrical engineering. The three 

 floors have an area of approximately 

 two acres for the work of instruction 

 and research, and every need in the 

 way of appliances and apparatus is 

 provided. 



Guyot Hall, completed last year at 

 a cost of $425,000, is divided about 

 equally between biology and geology, 

 giving the latter science probably the 

 best provision in the country. The 

 building contains over a hundred 

 rooms, including a large museum. 

 Biology has in addition a separate 

 building as a vivarium for the study 

 of living plants and animals. The 

 aquaria have both sea and fresh water, 

 and there is provision for insects, am- 

 phibians, reptiles, birds and mammals. 

 Near by is a pond and stream where 

 animals may be kept under natural 

 conditions. 



Princeton offers opportunities for 

 study and research in the natural and 

 exact sciences which are in some ways 

 unique. The situation in the country, 

 but within easy reach of New York 

 and Philadelphia, offers many advan- 

 tages. With its peculiar attractions, 

 Princeton takes its place with the 

 great universities so closely lining 

 the eastern seaboard — Harvard, Yale, 

 Columbia, Princeton, Pennsylvania and 

 the Johns Hopkins. 



COMPARATIVE PSYCHOLOGY IN 

 AMERICA 



The last number of the Zeitschrift 

 fiir Psychologie devotes twenty-two 

 pages to a review of the recent litera- 

 ture of comparative psychology. This 

 review covers more or less adequately 

 the material for the years 1907, 1908 

 and 1909. Twenty-eight articles are 

 noted of which nineteen are by Amer- 

 ican authors, one by an Englishman 

 and the remaining eight by Germans. 



This review emphasizes the fact that 



comparative psychology is largely an 

 American branch of science. It began, 

 in so far as the study of higher ani- 

 mal forms in this country is concerned, 

 in 1S98, with the classical work of 

 Thorndike on " Animal Intelligence," 

 which was followed three years later 

 by his study of the " Mental Life of 

 the Monkeys." Shortly afterwards 

 small comparative laboratories were 

 added to the already existing experi- 

 mental laboratories of Clark, Harvard 

 and Chicago, and in these the great 

 bulk of the animal work has since been 

 done. Recently a fairly adequate ani- 

 mal-behavior laboratory has been added 

 to the psychological department of the 

 Johns Hopkins University. It has 

 been an interesting fact in the develop- 

 ment of this field that the work has 

 not been confined wholly to specially 

 developed technical laboratories. Sev- 

 eral important pieces of work have ap- 

 peared under psychological auspices 

 from the universities of Cornell, Illi- 

 nois and Stanford and from the zoolog- 

 ical laboratories of the universities of 

 Chicago, Harvard and Johns Hopkins, 

 and of the Carnegie Institution. 



The work in this country has been 

 characterized by systematic and long- 

 continued studies of certain groups of 

 problems; while that in foreign coun- 

 tries has been more sporadic. The 

 work of Pfangst on " Der kluge Hans," 

 which has been translated by Mr. Carl 

 Rahn and that of Katz and Revesz on 

 the light sense of the chick are the two 

 conspicuous examples of systematic 

 and careful work in Germany. In the 

 United States work has been centered 

 around three problems : ( 1 ) the gen- 

 eral method of learning (problem 

 boxes, mazes, etc.) which gives ac- 

 quaintance with the animal's instinct- 

 ive capacities and prepares the way 

 for a study of (2) imitation (and the 

 effect of tuition) and (3) the deter- 

 mination of the delicacy and complete- 

 ness of its sense-organ equipment. 



The first problem received the great- 

 est amount of attention during the first 



