INDEX 
A. ORIGINAL PAPERS AND NOTES. 
Arthur, J. C. — The Movement of Protoplasm in Coenocytic Ilyphae. 
(With Woodcuts 8, 9, 10, 11) 
Biffen, R. H. — The Functions of Latex 
Bower, F. O. — Studies in the Morphology of Spore-producing Mem- 
bers : Part III, Marattiaceae ...... 
Brannon, M. A. — The Structure and Development of Grinnellia 
americana, Harv. (With Plates I-IV) 
Chodat, R. — On the Polymorphism of the Green Algae and the 
Principles of their Evolution ....... 
Clifford, J. B. — Notes on some Physiological Properties of a Myxo- 
mycete Plasmodium. (With Woodcuts 3, 4, 5) . 
Dixon, H. H. 
The Tensile Strength of Cell-walls 
The Structure of Codium. (With Woodcut 12) . 
Ellis, W. G. P. — Fungi for Class-Demonstration .... 
Ewart, A. J. 
Bacteria with Assimilatory Pigments found in the Tropics . 
The Effects of Tropical Insolation ...... 
The Effects of Tropical Insolation ...... 
Farmer, J. B. — On the Structure of a Hybrid Fern. (With Plates 
XXIII and XXIV) 
Green, J. R. — The supposed Alcoholic Enzyme in Yeast . 
Groom, P. —On the Leaves of Lathraea Squamaria and of some allied 
Scrophulariaceae. (With Woodcut 7) . 
Gwynne-Vaughan, D. T.— On Polystely in the Genus Primula. 
(With Plate XIV) 
PIarvey Gibson, R. J. — Contributions towards a Knowledge of the 
Anatomy of the Genus Selaginella : Part III, The Leaf. 
(With Plate IX) 
Holm, T. — Obolaria virginica, L. : A Morphological and Anatomical 
Study. (With Plate XIX and Woodcut 6) . 
Ikeno, S. and Hirase, S.- — Spermatozoids in y Gymnosperms 
Jeffrey, E. C. — The Gametophyte of Botrychium virginianum . 
Lang. W. H. 
Preliminary Statement on the Development of Sporangia upon Fern 
Prothalli 
Studies in the Development and Morphology of Cycadean Sporangia : 
I, The Microsporangia of Stangeria paradoxa. (With Plate 
XXII) 
Magnus, P. — On some Species of the Genus Urophlyctis. (With Plates 
VII and VIII) 
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97 
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5 8 5 
588 
333 
486 
439 
585 
533 
555 
385 
307 
123 
369 
344 
481 
157 
421 
87 
