TABLE OF CONTENTS, VOLUME III, 1916 
No, I, January 
PAGE 
Physiological observations on alkaloids, latex and oxidases in 
Papaver somniferum 
Rodney H. True and W, W. Stockberger i 
Notes on the anatomy of Peridermium galls (with one text figure 
and plate I) Alban Stewart 12 
The climatic distribution of certain types of Angiosperm leaves. 
Irving W. Bailey and Edmund W. Sinnott 23 
A Gymnosporangium with repeating spores (with one text figure) . 
J. C. Arthur 39 
No. 2, February 
The exchange of ions between the roots of Lupinus albus and 
culture solutions containing three nutrient salts (with three 
text figures). Rodney H. True and Harley H. Bartlett 47 
On the identity of Blanco's species of Bambusa.. .E. D. Merrill 58 
The region of greatest stem thickness in Raphidophora (with one 
text figure) Frank C. Gates 65 
The mechanism of movement and the duration of the effect of 
stimulation in the leaves of Dionaea (with one text figure). 
William H. Brown 68 
No. 3, March 
The specificity of proteins and carbohydrates in relation to genera, 
species and varieties Edward Tyson Reichert 91 
Mechanics of dormancy in plants William Crocker 99 
The periodicity of freshwater algae (with three text figures). 
Edgar Nelson Transeau 121 
No. 4, April 
The morphology and affinities of Gnetum (with plates II-VII). 
Walter P. Thompson 135 
iii 
