866 THE JOURNAL OF BOTANY 
4 to 48, comprising more than a hundred peers: are a chemical 
study of the final products of nitrogenous metabolism. The chapter 
on oxygen-absorption (pp. 368- 492) i is a useful historical and general 
oridatio of the chemical phase of gecesi and the products of 
Then comes an account, Ssaaiieie eleven chapters, of the mineral 
matter in bacteria, fungi, and the various parts of the higher plants. 
the 
flab. to ‘dition physiological processes. work is in every 
ois a solid contribution to a somewhat neglected aspect of plant- 
ghee. & 
A.B. BR: 
Iilustriertes Handwérterbuch der Botanik. Mit Lak tea der 
Herr 
. v. Horsnet, Dr. v. Keissier, FFNER, Dr. 
tevin Dr. ZAHLBRUCKNER, aint unter itwiskang Me aur 
O. Porscu, herausgegeben von C. M. Scuneiwer. 1, 
690, tt. 841. Leipzig: engsimadt 1905. Price 16 5° ang 
Tus profusely illustrated mowed vi Encyclopedia of Botany 
= be useful to English readers of German botanical works, as well 
s to German-speaking ike ts. As sli editor, who writes from 
the Department of Botany of the Vienna Hofmuseum, points out, 
to have made the volume exhaustive would have been seriously to 
parae its use by enormously increasing its size and cost. The 
aim of those who shared the work has been to include those terms 
which appeal to the general botanical reader and student, omitting 
terms of a purely entcig tt nature, such as will be found explain ned 
in any small handboo those which are chemical, physical or 
geological rather than Sotasieal, as well as those relating to micro- 
technique in the narrower sense. Terms which have gone out of 
use are also neglected. Wherever practicable, reference is given to 
the author of the term and its place of origin, the definition being as 
nearly as possible that i ger iae ve its author, and often illustrated 
from the inal work. Fo 
gures borrow instance, u 
Statolithentheorie is a useful résumé of the theory, occupying more 
an a page, and illustrated by two good figures borrowed from 
Haberlandt. A short description of Mesophyl is illustrated by a 
transverse section of a beech leaf (aftér Pax); an article of a little 
over two pages on it evra gener, by familiar diagrams from 
Sachs, Prantl, and Schwendener; while under Sporocarp are 
e- 
produced the well-known figures of Salvinia, magi and Pilularia, 
also from . Some of the illustrations are original, as, for 
instance, some good bag ar illustrating cymose inflorescences by 
Wagner 
On the whole, a very considerable amount of information has 
been brought together into a comparatively small space, while 
Feferences to literature indicate where a more complete account is 
