V 
page 
C. Suggestion of Van’t Hoff ... ... 82 
D. Suggestion of Siegfried ... ... 83 
E. Theories of Willstatter ... ... 84 
Chapter VIII. Concluding Remarks ... 91 
Literature cited . 94 
Jorgensen, Ingvar, see under Stiles. 
Kashyap, Shiv Ram. Note on Targionia hypophylla ... 228 
Knight, R. C. Recent Work on Transpiration ... ... 127 
Mangham, Sydney. On some criticisms of the osazone 
method of detecting sugars in plant 
tissues ... ... ... ... 236 
Sahni, Birhal. Observations on the Evolution of Branching 
in the Filicales (1 Text-fig.) ... 1 
S(cott), D. H. Fossil Plants, Vol. III. Pteridospermeae, 
Cycadophytes, Cordaitales, Cycad- 
ophyta. By A. C. Seward (Review) 230 
S(eward), A. C. Ruth Holden (1890-1917) ... ... 154 
Small, James. The Origin and Development of the 
Composite. 
Introduction ... ... ... ... ... 157 
Chapter I. History of the Classification of 
the Composite (3 Text-figs.) ... 159 
Chapter II. The Pollen Presentation 
Mechanism (4 Text-figs.) ... ... 198 
Chapter III. Irritability of the Pollen 
Presentation Mechanism ... ... 253 
Stiles, Walter, and Jorgensen, Ingvar. Observations on 
the influence of aeration on the 
nutrient solution in water culture 
experiments, with some remarks on 
the water culture method ... 181 
Stiles, Walter, see under Jorgensen. 
T(homas), E. N. John William Hart ... ... ... 45 
Thompson, H. Stuart. Radical leaves of Parnassia 
palustris and Valeriana dioica 
(2 Text-figs.) . 151 
