vi CONTENTS 
Physiological properties of bog water. Contributions 
from the Hull Botanical ere LXXII 
(with three figures) . - 
An apparatus for observing the eae se stream 
(with two figures) - - 
Leguminous rusts from Mexico - - 
On the water-conducting systems of some desert 
plants (with ten figures) - - 
The effects of toxic agents upon the action of bromelin. 
Contributions from the Hull Botanical Labor- 
atory. LXIII - - - - - 
BRIEFER ARTICLES— 
Fertilization in the Saprolegniales - =- ~~ - 
The sexual organs and ili generation 
of the Rhodophyceae - 
New precision appliances for use in plant phys 
ology. II (with four figures) - 
Terminology of the ita structures in the 
Uredinales - 
Notes on the physiology of pesdaai 
Contributions from the Hull Botanical Lab- 
oratory. LXX (with three figures) - - 
Fertilization in the Saprolegniales - - 
Polyembryony in Sphagnum (with three fig- 
ures) - - < . “ . = 
Adenoderris, a valid genus of ferns (with two 
The early history of angiosperms = - Sa a, 
CurRENT LITERATURE - - 
For titles see index oak. ae name wat 
Reviews. Papers noticed in ‘Notes for 
Students” are indexed under author’s name 
and subjects 
News : = ‘ a * 
DATES OF PUBLICATION. 
[VOLUME XXXIx 
B. E. Livingston 
Otto V. Darbishire 
J.C. Arthur 
W. A. Cannon 
J.S. Caldwell 
B. M. Davis” 
B. M. Davis 
W. F. Ganong 
J.C. Arthur 
B. E. Livingston 
A. H. Trow 
Hi. L. Lyon 
W. R. Maxon - 
Ethel Sargant 
PAGE 
% 153, 223, 301, 370, 424 
- 79, 160, 240, 319, 384, 436 
No. 1, January 20; No. 2, February 17; No. 3, March 20; No. 4, April 18; 
No. 5, May 20; No. 6, June 22. 
i 
b 
Bases oe piss eg Gi 
