BOOK-NOTES, NEWS, ETC. 63 
WARMING-J OHANNSEN i der allgemeinen Botanik, Heraus- 
ager von E. P. Metnecke. Erster Teil. 8vo. Pp. 480, 
t. 4 Borntraeger, Berlin, 1 7. 
German translation of the Danish text-book ss 
Sime the fourth edition of which was published in 1901. Som 
delay has arisen in the issue of the work, the printing of which 
began in 1904; the first part now to hand ——— three- — 
of the whole, and the remainder is promised at once. It be 
hoped that there will be no further delay in the soenjietibn a the 
work, which at present breaks off in the middle of a chapter and 
lacks the very necessary index. When completed it promises to be 
In point of size the book will be larger than the well-known and 
widely used Strasburger Lehrbuch der Botanik, but the Warming- 
Johannsen work corresponds only to abou t half of the other book ; 
that is to say, to the general portion as distinguished from the 
the pla d. 
Hence in the newer work we have a much more apt arae treat- 
ment of general morphology, cell-structure, general anatomy an 
physiology than was presented in the Bonn text-book edited by Dr. 
Strasburger. The treatment is clear, the illustrations are nume- 
rous and helpful, aod she book should prove of great value to 
students who need a somewhat fuller exposition of the facts of 
general botany. Of the twelve — into which the ——, 
matter falls, the first portion includes numbers 1 to 7 and part of 
section 8, that is to say, the general srice hese: cell-structure, 
anatomy and physiology, leaving for the second portion the re- 
ainder section on reproduction, and sections ee 
relpetavey with inflorescence, flower, and pollination, fruit, 
and germination, an ecological chapter, and one on phylogeny. 
A. B. R. 
BOOK-NOTES, NEWS, ée. 
At the meeting of the Linnean Society on 19th wet 
paper by Dr. G. Archdall Reid ‘On pore and Sex”’ was read, 
of one the Boge is an abstract :—Species are ida paicrial 
nd 
The oridsiine = plata that, speaking generally, variability is con- 
trolled and regulated by Natural Selection ; therefore variability 
: a a real : 
spontaneous, as is proved by a mass of evidence afforded by human 
beings; Natural Selection builds solely on spontaneous variations. 
n n 
ie re 
dominate over progressi ve variations. This tendency to retro- 
gression is very useful and has played an immense part in adapt- 
ces in the mode of reproduction of sexual and non-sexual 
