No. 457.] NOTES AND LITERATURE. 55 
able because of the original division of the subject, but it is always 
a repetition from a different standpoint, giving the reader a more 
comprehensive view of the subject. And only by minute criticism 
of what has been published is it possible to distinguish fact from 
theory, and well-founded theory from that which is only plausible. 
This book will serve as the basis, the inspiration, and the critical 
guide of the investigations of the next twenty years. The future is 
not likely to give us another book by one man who is master of the 
whole field. This book stands as a monument to Pfeffer's learning. 
The books which follow it will be written by several masters working 
together, as is already the case in animal physiology. 
It may not be out of place to mention here that the Philosophical 
Faculty of the University at Góttingen have awarded the 12,000 
mark prize of the Otto Vahlbruck Foundation to Pfeffer, justly 
considering his 2/fazzenpAysiologic the most worthy contribution to 
botanical science which has been made in years. 
The excellent English translation by Ewart, the first two parts of 
which have appeared,! will be cordially welcomed when completed. 
GER 
1 Published by the Clarendon Press, Oxford. 
