lume LV Number 4 
BOTANICAL GAZETTE 
Editor: JOHN M. COULTER 
April ro1r3 
The Effect of Certain Chlorides Singly and Combined in 
Pairs on the Activity of Malt Diastase Lon A. Hawkins 
A Physiological ent: Chemical Study of After-Ripening 
Sophia Eckerson 
» The California Paroselas | S. B. Parish 
The Effect of Some Puget Sound Bog Waters on the Root 
Hairs of Tradescantia Sood B. Rigg 
Current Literature 
The University of Ghicees Press 
CHICAGO, ILLINOIS, U.S.A. 
Agents 
_ THE CAMBRIDGE UNIVERSITY PRESS, London and Edinburgh 
WESLEY & SON, London 
: TH. STAUFFER, Leipzig ne 
THE 4 Tokyo, Suse Kyote 
