XXVI 
CONTENTS. 
1'runet, A . — Reserves of Water in Plants Part 2 
Schlcesing, T . — Interchange of Carbon Dioxide and Oxygen between 
Plants and the Atmosphere „ 
Willis, J. C . — Distribution of the Seed in Claytonia Part 3 
„ „ Exotrophy „ 
W iesner, J . — Unequal Growth in Thickness resulting from position .. .. „ 
Candolle, C. de — Action of the Ultra-violet Rays on the Formation of 
Flowers „ 
Schwendener, S., & others — Torsions in the Growth of Leaves and 
Flowers „ 
Jost, L . — Secondary Increase in Thickness of Trees „ 
Prunet, A . — Development of Potato-tubers „ 
Bohm, J. — Stem-pressure „ 
Bonnier, G . — Transmissibility of Pressure in Plants „ 
Schwendener, S . — Ascent of Sap „ 
Frank, B . — Nutrition of Pines by Mycorhiza „ 
Kraus, C . — Adaptation of the Root to vital conditions „ 
Wortmann, J. — Water Culture of Plants „ 
Gain, E . — Influence of Moisture on Vegetation „ 
Prunet, A . — Effects of Freezing on Absorption and Evaporation .. .. „ 
Schlcesing, T., & others — Fixation of Free Nitrogen by Plants .. . . „ 
Berthelot — Absorption of Atmospheric Nitrogen by Microbes „ 
Schneider, A . — Influence of Anaesthetics on Transpiration „ 
Chodat, E . — Effect of the Electric Light on Vegetation Part 4 
Loew, E . — Adaptations for Epiphytism „ 
Muller-Thurgau, A . — Influence of the Seed on the Development of the Fruit „ 
Pfeffee, W . — Energetics of Plant' life Part 5 
Trabut, L . — Germination of the Cocoa-nut „ 
Sachs, J . — Relationship between Specific Size and Organization . . . . „ 
Tischutktn, N . — Nutrition of Insectivorous Plants „ 
Christison, D . — Increase in Girth of Stems „ 
Arcangeli, G . — Growth of the Leafstalk of Nymphaeacese s , 
Girard, A . — Transport of Starch in the Potato „ 
Jones, H. L. — Graft-hybrid „ 
Geneau de Lamarliere, L . — Germination of Umbelliferae Part 6 
Godlewski, E. — Growth of Plants „ 
Busse, W . — Growth of the Silver-fir „ 
Gain, E . — Development of the Tubercles of Leguminosse „ 
Pasquale, F., & E. Guinier — Exudation from Leaves „ 
Daniel, L . — Transpiration from Grafts „ 
(3) Irritability. 
Claudel, L., & W. Pfeffer — Causes of Sensitive Movements Part 1 
Hansgirg, A. — Nyctitropic, Gamotropic, and Carpotropic Movements . . „ 
Kothert, W. — Propagation of Heliotropic Irritability „ 
Darwin, F., & Miss D. F. M. Pertz — Artificial Production of Rhythm 
in Plants „ 
Macfarlane, J. M. — Irritability of the Leaves of Dionaea Part 3 
Wilson, W. P., & Jesse M. Greenman — Movements of the Leaves of Melilotus „ 
Noll, F. — Heterogenous Induction ,, 
Errera, L. — Cause of Physiological Action at a Distance „ 
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