3i6 



POPULAR SCIENCE MONTHLY. 



p&ycliology as well as the other sciences. 

 When the separate sciences developed, 

 some part of psychology was taken with 

 them, and the physicist, the physiolo- 

 gist and the zoologist made experi- 

 ments and researches which are now 

 claimed by psychology. In the mean- 

 while philosophy continued to care for 

 psychology — we have, for example, in 

 England Locke, Berkeley and Hume, 

 and in Germany Herbart — but some- 

 times without sufficient attention to 

 observation and experiment. Then 

 about fifty years ago, in the hands of 

 those who cared both for philosophy 

 and science — Lotze, Fechner, Helmholtz, 

 Wundt and others — psychology took 

 definite shape as a natural and experi- 

 mental science. Wundt's 'Physiolo- 

 gische Psychologic,' published in 1874, 

 was the first comprehensive handbook. 

 James's 'Principles of Psychology,' pub- 

 lished in 1890, is equally important and 

 more readable. Apart from numerous 

 good text-books and treatises in vari- 

 ous languages, we had the first labo- 

 ratory manual in Sanford's 'Course in 

 Experimental Psychology' (1894), but 

 this only treated the senses which had 

 already been pretty well worked over 

 by physicists and physiologists. Now 

 in Titchener's 'Experimental Psychol- 

 ogy: a Manual of Laboratory Prac- 

 tice' — the work is published by the 

 Macmillans — we have the first complete 

 laboratory course in psychology. It is 

 a large work : Volume I, which has 



alone been issued, includes two parts 

 treating qualitative experiments, one 

 intended for the student (xviii+ 

 214 pp.) and the other for the in- 

 structor (xxxiii+456 pp.). Two fur- 

 ther volumes, treating quantitative ex- 

 periments, are promised. The experi- 

 ments are described in chapters en- 

 titled: Visual sensation, Auditory sen- 

 sation, Cutaneous sensation. Gusta- 

 tory sensation. Olfactory sensation, 

 Organic sensation. The affective quali- 

 ties, Attention and action, Visual 

 space perception. Auditory perception, 

 Tactual space perception. Ideational 

 type and the association of ideas, Ap- 

 pendices. 



Detailed comment and criticism must 

 be relegated to the special journals. 

 There is no question but that the work 

 will greatly forward the teaching of ex- 

 perimental psychology and is invalu- 

 able to the teacher and advanced stu- 

 dent. There will be difference of opin- 

 ion as to how far the book can be put 

 to advantage in the hands of students 

 beginning laboratory work in psychol- 

 ogy, and the question can only be set- 

 tled by actual trial. There is naturally 

 less agreement as to what experiments 

 should be made and what methods 

 should be used than in the ease of 

 sciences, such as chemistry and physics, 

 where natural selection has long been 

 at work. But Professor Titchener has 

 laid the foundation on which future 

 workers must build. 



