INDEX. 
A. ORIGINAL PAPERS AND NOTES. 
PAGE 
Adams, J.—The Effect on Certain Plants of altering the Daily Period of Light ... 75 
Arber, Agnes—O n the ‘ Squamtilae Intravaginales ’ of the Helobieae. With five Figures in 
the Text ...... . . ....... 31 
Beutner, R.—Diphasic Liquid Systems and Bio-electrical Phenomena. A Reply to 
Criticism. .............. 673 
Bexon, Dorothy, see Holden, H. S. 
Bower, F. O.—Studies in the Phylogeny of the Filicales. VIII. On Loxsoma and Loxso- 
mopsis. With six Figures in the Text ........ 349 
Brown, William.—E xperiments on the Growth of Fungi on Culture Media. With seven 
Figures in the Text . 105 
Browne, Isabel M. P.—Anomalous Traces in the Cone of Equisetum maximum, Lam. . 595 
Bunking, R. H., see Tabor, R. J. 
Chaudhuri, H.—A Study of the Growth in Culture of Verticillium albo-atrum, B. et Br. 
With twelve Figures in the Text .......... 519 
Chibnall, Albert Charles.—D iurnal Variations in the Total Nitrogen Content of Foliage 
Leaves.511 
Cole, L. W.—Teratological Phenomena in the Inflorescences of Fagus sylvatica. With two 
Figures in the Text. 147 
CROW, W. B.—Dimorphococcus Fritschii, a New Colonial Protophyte from Ceylon. With 
one Figure in the Text . . . . . . . . . . . .141 
Fritsch, F. E., and Haines, F. M.—The Moisture-relations of Terrestrial Algae. II. The 
Changes during Exposure to Drought and Treatment with Hypertonic Solutions. 
With eight Figures in the Text.. . 683 
Gadd, C. H., see Petch, T. 
Gates, R. Ruggles.—T he Trisomic Mutations of Oenothera. With Plate XI . . . 543 
-— The Chromosomes of a Triploid Oenothera Hybrid. With Plate XII 565 
Grubb, Violet M.—The Attachments of Porphyra umbilicalis, (L.) J. Ag. With Plate I 
and eight Figures in the Text.131 
- Preliminary Note on the Reproduction of Rhodymenia palmata, Ag. 
With two Figures in the Text . . . . . . . . . . • I 5 I 
Haines, F. M., see Fritsch, F. E. 
Haynes, Dorothy.—A Criticism of Beutner’s Theory of the Electromotive Force of Diphasic 
Liquid Systems and their Relation to Bio-electrical Phenomena . . 95 
-Diphasic Liquid Systems and Bio-electrical Phenomena . . . 679 
Holden, H. S., and Bexon, Dorothy.—O n the Seedling Structure of Acer Pseudoplatanus. 
With seventy-four Figures in the Text.. • 57 1 
Horne, A. S., and Williamson, H. S.—The Morphology and Physiology of the Genus 
Eidamia. With twenty-three Figures in the Text ....... 393 
Horton, W.—Microscopical Technique .......... 7 2 9 
Jones, Linus H., and Shive, John W.—Influence of Ammonium Sulphate on Plant Growth 
in Nutrient Solutions and its Effect on Hydrogen-ion Concentration and Iron 
Availability. With six Figures in the Text ........ .355 
Jones, S. G.—Life-history of Rhytisma acerinum (Preliminary Account) .... 731 
Matthews, J. R.—The Distribution of certain Portions of the British Flora. I. Plants 
restricted to England and Wales. With six Diagrams in the Text . . • 277 
Obituary: 
Isaac Bailey Balfour . 335 
