92 LECTURES ON THE PHYSIOLOGY OF PLANTS. 
is printed, &c., in a worthy way. Though as a matter of course the 
illustrations of Goebel’s book are here reproduced, this makes yet 
Corallinee and Characee would no doubt be favourite answers. 
ow many would guess Diatoms ? G. M. 
Lectures on the Physiology of Plants. By Sypyny Howarp Vines, 
M.A., D.Se., F.R.S. Cambridge: University Press. 1886. 
Price £1 1s 
the present one, on a more extended scale and with a different 
treatment of the matter, is none the less welcome. After an intro- 
ductory lecture, the author discusses the subject in the following 
order. Lectures II. and III. deal with the structure and properties 
of water and of 
XY. with growth ; XVI. to XXI. with irritability; and XXII. and 
XXIII. with reproduction. Finally, there is a copious and useful 
Index, and at the end of each lecture a bibliography of the special 
convinces the reader that there is here the work of a 
been undaunted by the vastness of the literature to be dealt with, 
who has red himself in no way to ensure accuracy, and who 
understands from experience in teaching how most effectively to 
present the results of all this labour to his audience or readers. 
The natural conclusion from this would be that there is here an 
ideal text-book. In the view of many people that may be so, and 
the writer would be very sorry to interfere with the high estimate 
every one is bound to form of the book; and it is to be understood 
t its excellence provokes this criticism. Though the impression 
is left on the reader throughout that the author is familiar with the 
things he describes, and that he has given them indeed much 
