CONTENTS. 
PAGE 
Gates, R. Ruggles. —The Trisomic Mutations of Oenothera. With Plate XI . . 543 
Gates, R. Ruggles. —The Chromosomes of a Triploid Oenothera Hybrid. With Plate XII 565 
Holden, H. S., and Bexon, Dorothy.— On the Seedling Structure of Acer Pseudo- 
platanus. With seventy-four Figures in the Text.571 
Browne, Isabel M. P.—Anomalous Traces in the Cone of Equisetum maximum, Lam.. 595 
Willis, J. C.—The Origin of Species by Large, rather than by Gradual, Change, and by 
Guppy’s Method of Differentiation . 605 
Warington, Katherine. —The Effect of Boric Acid and Borax on the Broad Bean 
and certain other Plants. With Plate XIII and six Figures in the Text . . . 629 
Beutner, R.—Diphasic Liquid Systems and Bio-electrical Phenomena.—A Reply to 
Criticism ............... 673 
Haynes, Dorothy.— Diphasic Liquid Systems and Bio-electrical Phenomena . . 679 
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 
NOTES. 
Horton, W.—Microscopical Technique. . . 729 
Jones, S. G.—Life-history of Rhytisma acerinum (Preliminary Account) . . 731 
Title, Contents, and Index to Vol. XXXVII. 
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