BEITRAGE ZUR MORPHOLOGIE UND PHYSIOLOGIE, ETC, 251 
Prof. Schmitz'’s remarks on the specimen sent him, and that the 
sentence ought to read:—* Prof. Schmitz, to whom I sent a 
specimen, gave his opinion on it in the ym an words :——‘ Der 
Thallusbau erinnert sehr an Nemastoma? palmata, Harv. rye. 
Aust. 262, so dass wohl beide Arten zu derselben Gattung gehéren 
diirften, doch gehoren sie meines pong keinenfalls zu Nema- 
stoma.’”’ . (The structure of the thallus reminds one very much of 
Nemastoma? palmata Harv. Phyec. Aust. 262, so that both species 
might very well belong to the same genus, but in my view they do 
not by any means belong to Nemastoma.) 
NOTICES OF BOOKS. 
Beitriige zur Mor gon cere Ph Jd der if reenentans Herausgeg. 
von Dr. A. Zim d. I. pp. 822; with 5 plates 
oi 23 figures in ohh: ear Daatiads, 1893. H. Laupp. 
THE sie s now before us contains fifteen communications, of 
various foie on the microscopic structure and contents of the 
plant-cell. For the greater number Dr. Zimmermann himself i = 
responsible. Thus of the three “ Hefts," Nos. ‘ 
entirely his, oe of the seven articles in No. III. he he eva 
four and C. Correns two, a shorter one on the alga ratte 
Sali ons N rai and a longer on the minute structure o 
brane in the Chlorophycea: and Floridea. Fin ally, K. Schi ra has a 
note on some cuticular formations in the epidermis of the fruit of 
the liliaceous plant, Rohdea japonica. 
The book begins with a brief historic note on plasma con- 
nection, in which Dr. Zimmermann points out that while we owe 
the first published account to Tangl, it is evident from some notes 
and drawings found at Tubingen among Hofmeister’s effects, that 
pit-closing membrane in the osperm he author thinks it 
act of piety to make this more generally known, and therefore 
exactly reproduces Hofmeister’s figures of sections of th do 
mechanical oe ‘and #3 haga of the leaf-trace bias but 
not of ae cauline, of Tradescantia SE etc itiae 5 a discolor, and 
