246 BOTANICAL GAZETTE. [| September, 
welcome. It forms a part of Schenk’s Hand-book of Botany, parts of 
which have already been noticed in this journal (vol. x. 814 and 881). So 
vast has become the literature of this subject that it has been quite im- 
possible for Dr. Zimmermann to test all the observations recorded, but he 
has evidently used great care in quoting results, and has gathered from 
many sources. In,a bibliography, “ which lays no claim to complete- 
ness,” 376 separate papers and works are cited. Botanists would thank 
the author had he done nothing more than summarize the chief points 
contained in these widely scattered papers; how much more do they owe 
him for the painstaking sifting and digesting which he has performed. 
The judicial remarks upon various opinions and theories seem to indi- 
cate a wise conservatism and the application of sound common sense to 
the intricate problems presented by the plant cell. 
It is quite impossible to review this excellent work in detail in the 
space at command. We can serve our readers better by giving an insight 
into the scope of the work by citing the chapter headings. The first 
part (166 pages) treats of the morphology of the cell under the following 
main topics: Form of the plasma; intimate structure and chemical com- 
position of the cytoplasm; the nucleus, its intimate structure and the 
chemical composition of the resting nucleus, nuclear division and coa- 
lescence; the chromatophores, their finer structure, chemical composi- 
appreciate it the more because of the inaccessibility of most of the 
literature. 
Minor Notices. mon 
THE SEVENTH PaRT of Husnot’s Muscolozia Gallica® has been issued. 
It concludes the genus Orthotrichum, to which a key to species ig given, 
and treats the genera Encalypta, Schistostega, (Edipodium, deere 
Tayloria, Tetraplodon, Splachnum. Ephemerum, P::yscomitrella, ae 
ium, Pyramidula, Physcomitrium, Entosthodon, Funaria, Mielichhoieria, 
Orthodontium, Leptobryum, Anomobryum and Plagiobryum. ni 
gists will notice the new a sociation of the genera. The plates 
valuable work grow better and better. 
Bry 
of this 
et 
__, HUsNor TH.—Museologia Gallica : figures des mousses de Franey 
$588 gar 9 nh isines. 7@ livraison. sg i ae Wis. roy. 8vo. Cahan: the author. 
