472 BOTANICAL GAZETTE [DECEMBER 
down and the enzyme pass into solation while the protoplasm is living, but in 
others the combination may persist, even after the death of the protoplasm. 
The enzyme may be rendered soluble also by external chemical or physical 
influences. These probably act by destroying the integrity of the cell and allow- 
ing the contact of substances which have been localized in the living protoplasm. 
On maturity of the tissues the enzyme is generally liberated, possibly by auto- 
digestion or other profound change in the protoplasm.’”’—C. R. B. 
Fixation of free N.—Hannic, holding that H1ttNEr’s statement as to fixa- 
—* of free sora a6 by —— temulentum rested upon objectionable methods 
1 the matter and confirms the latter’s results.9 
About 100 per cent. increase in N of the crop over that in the seed is reported 
with the fungus-infested plants when N was excluded from the culture; whereas 
there was practically no increase in fungus-free plants. This is claimed to be 
the first ee of the fixation of free N by ectotrophic mycorhiza.— 
cE. B 
Zeitschrift fir Botanik.—On account of repeated and continued misunder- 
standings between the publisher of the Botanische Zeitung and its editors, 
FRIEDRICH OLTMANNS and Grar zu SoLMs-LAUBACH, the editors will sever 
their connection with that journal December 31, 1908, and, assisted by L. Jost, 
will found a new journal, Zeitschrift fiir Botanik, which will be published by 
Gustav Fischer of Jena. The journal will be a monthly, in the form of the 
Borantcat Gazette, and will contain both original investigations and critical 
reviews. The subscription price is 24 marks. 
CO, from dead tissues.—Nazoxicu reports in a preliminary paper’® that 
CO, is given off by dead seeds and seedlings of various plants, no matter how 
killed. He is apparently oblivious of the fact that CorELAND has already 
described the same phenomenon in dead water plants,t! and BECQUEREL in 
seed coats.12—C. R. B. 
9 HANNIG, E., Die Bindung freien atmosphirischen oe durch pilzhaltiges 
Lolium hevialanciacin: Ber. Deutsch. Bot. Gesells. 26a: 238-246. 1908. 
ae NABOKICK, A. J., Ueber die Ausscheidung von ps saline aus toten Pflanzen- 
teilen. Ber. Deutsch. Bot. Gesells. 26a:324-332. 1908. 
tt COPELAND, E. B., Chemical stimulation and the evolution of carbon dioxid. 
Bot. GAZETTE 35:81-08, 160-183. 1903. 
ta BECQUEREL, PAUL, icc. sur la vie latente de graines. Ann. Sci. Nat. 
Bot. IX. 5:193-320. 1907. 
