THE HARVARD LABORATORY OF ANIMAL PSYCHOL. 

 OGY AND THE FRANKLIN FIELD STATION 



ROBERT M. YERKES 

 With two figures 



It is now fifteen years since the Director of the Harvard 

 Psychological Laboratory, Professor Hugo Miinsterberg, made 

 a place for experimental work on the psychology of infra-human 

 organisms in his laboratory. In 1899, two rooms in Dane Hall 

 were assigned to students of animal psychology, and under the 

 direction of the writer, three investigations were conducted. To 

 meet the needs of an increasing number of workers, an additional 

 room was made available in 1902. 



In December, 1905, the laboratory equipment; together with 

 all experimental work in psychology, was transferred to a newly 

 and specially planned and constructed laboratory in Emerson 

 Hall. Here, five rooms, in addition to the Instructor's office 

 and a large amount of space in an unfinished attic, were available 

 for work with animals. The following account of the facilities 

 afforded for this work is quoted from a description of the Harvard 

 Psychological Laboratory, published in 1906 :i 



' Several rooms are fitted up with special reference to the 

 investigation of the various forms of organic movement, animal 

 behavior and intelligence. As one result of several investigations 

 in animal psychology already pursued here, the laboratory has a 

 considerable number of devices for testing and making statistical 

 studies of the senses and intelligence, methods of learning and 

 emotional reactions of animals. 



"Adequate provision is made for the keeping of animals in a 

 large, well-lighted, and well-ventilated corner room. Instead of 

 having aquaria built into the room, an aquarium-table eighteen 

 feet long has been constructed to support movable aquaria of 

 various sizes. Whenever it is desirable for the purposes of an 

 investigation, any of these aquaria may be moved to the research- 



■ The Harvard Psychol. Studies, vol. 2, p. 35. 



176 



