CONTENTS. 
PAGE 
Ridley, H. N.—The Distribution of Plants . .. 1 
Arber, Agnes.—O n the ‘ Squamulae Intravaginales ’ of the Helobieae. With five Figures 
in the Text ... * 3 1 
Snow, R.—The Conduction of Geotropic Excitation in Roots. With four Figures in the 
Text . . . ... • • • • • 43 
Waight, F. M. O.—On the Presentation Time and Latent Time for Reaction to Gravity 
in Fronds of Asplenium bulbiferum. With one Diagram in the Text . . . *55 
Smith, Francis E. V.— On Direct Nuclear Divisions in the Vegetative Mycelium of 
Saprolegnia. With twelve Figures in the Text . . . . • • • ^3 
Adams, J.—The Effect on Certain Plants of altering the Daily Period of Light. . .75 
Haynes, Dorothy.—A Criticism of Beutner’s Theory of the Electromotive Force of 
Diphasic Liquid Systems and their Relation to Bio-electrical Phenomena . *95 
Brown, William.—E xperiments on the Growth of Fungi on Culture Media. With seven 
Figures in the Text . . . . • • • • • • • io 5 
Grubb, Violet M.—The Attachments of Porphyra umbilicalis, (L.) J. Ag. With Plate I 
and eight Figures in the Text.. I 3 I 
Crow, W. B.—Dimorphococcus Fritschii, a New Colonial Protophyte from Ceylon. With 
one Figure in the Text . . . '.. • • J 4 r 
NOTES. 
Cole, L. W.—Teratological Phenomena in the Inflorescences of Fagus sylvatica. 
With two Figures in the Text. . .. l 47 
Grubb, V. M.—Preliminary Note on the Reproduction of Rhodymenia palmata, Ag. 
With two Figures in Text . . ... • • I 5 I 
Tabor, R. J., and Bunting, R. H,—On a Disease of Cocoa and Coffee Fruits caused 
by a Fungus hitherto undescribed. With three Figures in the Text . . .153 
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