678 
Analyses of Books . 
[November, 
to the statement that “ the Caucasian is taller than any of the 
other varieties.” The aborigines of the most southern part of 
America, the Maories and the Caffers, — all, be it remarked, 
dwellers in the Southern Hemisphere, — are at least equal, if not 
superior, in stature, to any nations of the white race. We must 
also question the assertion that “ Wherever the white man has 
established himself the other races disappear before him.” In 
North America the red men, and in Australia the “ black fellows,” 
have thus faded away on coming in contaCt with European 
settlers. But recent statistics make known the alarming faCt 
that the negro and negroid population is increasing more rapidly 
in America than the white inhabitants of European descent. 
It is further at least questionable to include the Hottentots 
under the Ethiopian race, and to class together the aborigines of 
Australia with the Maories and the Polynesians. Mr. A. R. 
Wallace has pointed out the broad distinction between the Malay 
and the Papuan. The classification of Dr. Huxley, of which an 
abstract is given, avoids some of these difficulties. 
The work generally is to be commended as giving not a mere 
description or catalogue of faCts, but as tracing out their connec- 
tions and causes. It appeals not so much to the memory of the 
student as to his reason. 
A Treatise on Chemistry . By H. E. Roscoe, F.R.S., and C. 
Schorlemmer, F.R.S., Professors of Chemistry in the Vic- 
toria University, Owens College, Manchester. Vol. III. — 
The Chemistry of the Hydrocarbons and their Derivatives, 
or Organic Chemistry. Part I. London : Macmillan and 
Co. 
The great work of Profs. Roscoe and Schorlemmer has, in its 
earlier volumes, deservedly won the favourable opinion of the 
scientific public. It possesses certain distinctive features which 
secure for it a wide appreciation even as compared with such 
formidable rivals as the great “ Dictionary ” of Watts and the 
well-known “ Elements ” of Miller. Without launching out into 
the boundless region of chemical technology, the work before us 
seems to bridge the gulf which separates theory from practical 
application in a peculiarly happy manner. Its illustrations, not 
merely of laboratory apparatus, but of industrial plant, are re- 
markable for their excellence and accuracy. To see how well 
this character is maintained in the present volume we need 
merely refer to the account of practical distillation and to the 
chapter on alcohol. 
The volume begins with an ably-written historical introduction, 
