Ill 
INDEX OF SUBJECTS. 
Page 
Aeration, Observations on the Influence of, on the Nutrient 
Solution in Water Culture Experiments— 
Stiles, Walter, and Jorgensen, Ingvar . 181 
Algae (Myxophyceae, Peridineae, Bacillarieae, Chlorophyceae) 
by G. S. West, Cambridge Botanical Text Books, 
Vol. 1 [Review]—F. E. F(ritsch) . 48 
Bacillarieae, see Algae. 
Baeyer, see under Jorgensen, Ingvar, and Stiles, Walter. 
Branching in the Filicales, Observations on the Evolution 
of (1 Text-fig.)—Sahni, Birbal ... ... ... 1 
Cambridge Botanical Text Books, Vol. I. Algae (Myxo¬ 
phyceae, Peridineae, Bacillareae, Chlorophyceae), 
by G. S. West [Review]—F. E. F(ritsch) ... 48 
Carbon Assimilation, see under Jorgensen, Ingvar, and 
Stiles, Walter [Index of Authors], 
Cereal Crops, The Effect of Weeds upon—Winifred E. 
Brenchley . . 53 
Chlorophyceae, see Algae. 
Classification of the Composite, History of the, see under 
Small, James [Index of Authors]. 
Compositae, The Origin and Development of—James Small 157, 198 
Cordaitales, see under Fossil Plants. 
Cycadofllices, see under Fossil Plants. 
Cycadophyta, see under Fossil Plants. 
Endotrophic Mycorhiza of Ericaceae, The (4 Text-figs.)— 
Jean Dufr^noy ... ... ... ... ... 222 
Energy Relations in Carbon Assimilation, see tinder 
Jorgensen, Ingvar, and Stiles, Walter (Index 
of Authors). 
Ericaceae, The Endotrophic Mycorhiza of (4 Text-figs.)— 
Jean Dufrenoy ... ... ... ... ... 222 
Evolution of Branching in the Filicales, Observations on 
the (1 Text-fig.)—Birbal Sahni . ... 1 
Filicales, Observations on the Evolution of Branching in 
the (1 Text-fig.)—Birbal Sahni . ... 1 
Flowers, The Syrphid Visitors to certain—E. and H. 
Drabble ... ... ... ... ... ... 105 
Fossil Plants, Vol. Ill (Pteridospermeae, Cycadofllices, 
Cordiates, Cycadophyta), by A. C. Seward 
[Review]—D. H. S(cott) ... ... ... ... 230 
