TABLE OF CONTENTS 
The Abscission of Flower-buds and Fruits in Gossypium, and its 
Relation to Environmental Changes. By FRANCIS E. 
Studies on the Protozoan Parasites of the Fishes of the Georgian 
BA VE VIEN EMEA VOR ss ac)” sect heey ete eee 
Notes on the Plankton of the British Columbia Coast. By J. 
EA VET AGM VI CIVIUR RICH. see 8. ns oe oes ee 
Halimedusa, a new Genus of Anthomedusæ. By HENRY B. 
POLE LOS Nee eke icy Rae en cea lS AE ANS Sd 
The Quantitative Study of Climatic Factors in Relation to Plant 
ETC EE VAI CN D ATS Peal Mut Nr Pan Pees} re 
Geological Structure of the Basin of Lake St. John, Quebec. By 
HOANAMDRESSERS MURAL SR re 
Bibliography of Canadian Entomology for the year 1915. By 
CMS DE THUNB Es Mage meee, SCANS. NA ne Shes Mans A 
Bibliography of Canadian Botany for the year 1915. By A. H. 
105 
125 
131 
169 
189 
201 
