INDEX. 
A. ORIGINAL PAPERS AND NOTES. 
PAGE 
Arber, E. A. N. — On the Effect of Salts on the Assimilation of Carbon 
Dioxide in Ulva latissima, L. ...... 39 
On the Effect of Nitrates on the Carbon- Assimilation 
of Marine Algae 669 
Barker, B. T. P. — Sexual Spore-formation among the Saccharomycetes. 759 
Biffen, R. H. — On the Biology of Bulgaria polymorpha, Wett. (With 
Plate VII) 1 19 
Blackman, F. F. — The Primitive Algae and the Flagellata . . 192 
Blackman, F. F., and Matthaei, Miss G. L. C. — On the Reaction 
of Leaves to Traumatic Stimulation. (With Plate XXIX, and 
five Figures in the Text) ....... 533 
Boodle, L. A. — Comparative Anatomy of the Hymenophyllaceae, 
Schizaeaceae, and Gleicheniaceae. II. On the Anatomy of the 
Schizaeaceae. (With Plates XIX, XX, and XXI) . . 359 
III. On the Anatomy of the Gleicheniaceae. (With 
Plates XXXVIII and XXXIX) 703 
On an anomalous Leaf of Anemia hirsuta, Sw. . . 765 
Bower, F. O. — Imperfect Sporangia in certain Pteridophytes. Are 
they vestigial ? 225 
Brebner, G. — On the Anatomy of Danaea and other Marattiaceae . 777 
Burkill, I. H. — The Ovary of Parnassia palustris, Linn. (With a 
Figure in the Text) . 186 
Campbell, D. H. — The Embryo-sac of Peperomia. (With Plate VI) . 103 
Chick, Miss E. See Tansley, A. G. 
Church, A. H. — Note on Phyllotaxis. (With two Figures in the 
Text) 481 
Dale, Miss E. — On the Origin, Development, and Morphological 
Nature of the aerial Tubers in Dioscorea sativa, Linn. (With 
Plate XXVI) .... 491 
Davis, B. M. — Nuclear Studies on Pellia. (With Plates X and XI) . 147 
Dawson, Miss M. — On the Economic Importance of ‘ Nitragin’ . 51 1 
Farmer, J. B. — The Quadripolar Spindle in the Spore-mother»cell of 
Pellia epiphylla . 431 
