908 Recent Literature. [Septemb ole 
of priority which is now often neglected in the case of the higher 
divisions. 
—— Good illustrations are an important part of scientific lit- 
erature, and in some of the departments essential. This is espe 
cially true of embryological and histological work. The difficulty 
encountered in the United States is the comparative expensive 
ness of the ordinary processes. For several years American nat- 
uralists and institutions have been seeking for cheaper methods | 
The Smithsonian Institution and the National Museum have been 
cure the best illustrations at cheaper rates than are now ga 
If we do not do so, there are strong symptoms that the 
American work will seek European channels of publication. 
:0; 
RECENT LITERATURE. 
Biocen, sy Dr. Coues.'—The present 12mo volume consists 
a lecture delivered before the Philosophical Society of st 
s graphic and entertaining style. The lecture pe 
agreeable reading. As to the philosophy of the ate nal, 
which are conclusive. However, towards the end of h 
he takes the real and impregnable position of the vita 
1 Biogen. Speculation on the origin ahd nature of Life. By Prof i 
Coues. Boston: Estes & Lauriat, 1884. i 
