V01.X 
OCTOBER, 1923 
No. 8 
AMERICAN 
JOURNAL OF BOTANY 
OFFICIAL PUBLICATION OF THE 
BOTANICAL SOCIETY OF AMERICA 
CONTENTS 
The effect of heat upon the mycelium of certain structural-timber-destroying fungi 
within wood,.... ,.......,.. . . .. Walter H. Snell 399 
An isoelectric point for plant tissue and its significance. .. .William J. Robbins 412 
Studies of Lythrumsalicaria I. The efficiency of self-pollination.. A. B. St6ut 440 
Chromosome behavior in Acer platanoides L..... Ciies^r ^Arthur Darling 450 
PUBLISHED 
IN COOPERATION WITH THE BOTANICAL SOCIETY OF AMERICA 
BY THE 
BROOKLYN BOTANIC GARDEN 
At Prince and Lemon Sts., Lancaster, Pa. 
LONDON AGENTS 
WHELDON AND WESLEY, Ltd. 
2, 3, & 4 Arthur Street, London, W. C. 2 
— ; ■■■ ■ - i - ; - ' ----- -- 
Entered as second-class matter February 21,1914, at the post office at Lancaster, Pa., under the act of March 3, 1879 
