i8 93 SCIENCE AT THE CHICAGO EXHIBITION. 341 



There is no regular exhibit of scientific instruments, except that 

 shown by several German firms in the Electrical Building. Here, 

 too, are the excellent anatomical and embryological models made by 

 Fr. Ziegler, of Freiburg i B. His series now numbers 279, and costs 

 about ^120 : which is not dear, considering its educational value. 



Under the auspices of Harvard there are carried on in the 

 Anthropological Building an Anthropometric and a Psychometric 

 Laboratory. Here, in return for a dollar, one may have almost every 

 physical and mental character tested. With the anthropometric 

 tests Mr. Francis Galton has pleasantly familiarised us in England ; 

 but the psychometric ordeal is somewhat of a new departure, worthy 

 of a more detailed account than is possible in this article. The 

 casual but curious visitor to Chicago is constantly checked by some 

 psychologic puzzle, either a pathetic appeal to choose his favourite 

 colour among several crude abominations, or an entreaty to determine 

 which of several meaningless geometric figures most appeals to his 

 artistic sense of beauty. In a conscientious endeavour to advance 

 Science by submitting to these mental tortures, I lost several hours 

 that might have been as usefully employed in the Midway Plaisance. 



To turn to Geology. One cannot complain of lack of material ; 

 collections of Fossils and Minerals are to be found in at least eighteen 

 buildings. The most interesting of these are the Stratigraphical 

 series of Fossils exhibited by the United States Survey in the Govern- 

 ment Building ; the educational collection of leading Fossils exhibited 

 by Professor Ward in the Anthropological Building, and the very 

 instructive set of specimens illustrating Dynamical Geology, in the 

 Mining Building ; his systematic collection of Minerals and set of 

 Meteorites in the same building are also fine ; the magnificent set of 

 local fossils, including the Worthen Collection of types, in the Illinois 

 State Building ; the G. F. Kunz collection of Minerals and gems. A 

 smaller collection, but one of the best shown by a private individual, 

 consists of the Fossils exhibited by Mrs. A. D. Davidson in the 

 Woman's Building. 



The Mining exhibits of most of the States and Countries are 

 either advertisements, commercial, or clap-trap. When the best that 

 Great Britain can do is to hew a statue of Liberty in a lump of rock- 

 salt, one begins to wonder whether we have ever boasted a School of 

 Mines or a Museum of Practical Geology. True that there is a good 

 collection of Economic minerals by Mr. B. H. Brough, which we are 

 glad to see has been awarded a prize. I am told, too, that our 

 Geological Survey has an exhibit somewhere ; but what geologist 

 would ever look for a geological map under the head of Liberal 

 Arts ? The German and Japanese exhibits are the only ones of any 

 scientific pretensions. The merit of the German miners is, however, 

 sufficiently well-known to Englishmen, and the geological work of 

 Japan is important enough to demand treatment in a separate 

 article. 



