6i 4 



THE POPULJR SCIENCE MONTHLY. 



studied carefully, tabulated, and reduced, at least in part, to 

 graphic form. Diagrams show the distinctive characters of tribes 

 and the effect of environment, the influence of crossing, and the 

 like. Maps instructively show the variation of stature and other 

 characters with changes in physical geography. In neurology 

 Prof. Donaldson, by a series of models and casts, represents the 

 brain form in man and lower animals, the structure of the brain, 

 localization of function, and modes of brain preservation for 



Jr^J W* , 1 )"' J * . : -t. 



House of Kwakiools (Vancouver Island). World's Columbian Exposition. 



study. Prof. Jastrow's two rooms are of great interest : in one, 

 arrangements are made for conducting the various tests of so 

 much importance in modern psychological study ; in the other, in 

 a series of cases, is a full representation of the instruments and 

 apparatus used in experimental psychology — instruments for in- 

 vestigating the senses of touch, light (color), hearing, etc., as well 

 as for recording, timing, and the like. All these laboratories are 

 expected to be in operation, and observations and experiments 

 will be conducted by a corps of student assistants. 



