THE 
BoTANICAL GAZETTE 
November 1906 
Editors: JOHN M. COULTER and CHARLES R. BARNES 
CONTENTS 
The Ovule and Female Gametophyte of Dioon 
Charles J. Chamberlain 
Temperature and Toxic Action Charles Brooks 
The Embryogeny of Some Cuban Nymphaeaceae 
Melville Thurston Cook 
Current Literature 
News 
The University of Chicago Press 
CHICAGO and NEW YORK 
William Wesley and Son, London 
