CONTENTS, 
XXV 
Wilson, J. II. — Pollination and Hybridizing of Albuca.. 
Knuth, P. — Pollination of Orobanclxex 
Day, T. 0. — Influence of Temperature on Germinating Barley 
Hemsley, W. B. — Vitality of Seeds 
Gandoger, M. — Longevity of Bulbils 
Beck v. Mannagetta, G. R. — Parasitism of Orobanche 
Johow, F. — Phanerogamic Parasites 
Devaux, H. — Rooting of Bulbs and Geotropism 
Kreusler — Assimilation and Respiration 
Jumelle, H. — Assimilation by Red Leaves 
Bonnier, G . — Influence of high altitudes on Assimilation and Respiration 
Kruticki, P. — Permeability of Wood to Air 
Frank, B. — Assimilation of Nitrogen by Robinia 
Bokorny, T. — Conduction of Water 
Mischke, K. — Increase in thickness of the Conferee 
Koch, L. — Parasitism of Euphrasia 
Saposchnikoff, W. — Formation and Transport of Carbohydrates 
Frank, B., & R. Otto — Assimilation of Nitrogen by Plants 
Palladin, W. — Effect of Transpiration on Etiolated Plants 
Boehm, J. — Ascending and descending Current in Plants 
Devaux, H. — Internal Atmosphere of Tubers and Tuberous Roots 
Chatin, A. — Biology of Parasites 
Yochting, H . — Assimilation of Leaves 
Atwater, W. O., & 0. D. Woods — Absorption of Atmospheric Nitrogen by 
Plants 
Prunet, A. — Perforation of Potatoes by the Rhizome of Grasses 
Loew, O . — Physiological Function of Phosphoric Acid 
Lesage, P. — Influence of Salt on the Quantity of Starch contained in the 
Vegetative Organs 
Bokorny, T. — Transpiration-current 
Devaux, H. — Passive Circulation of Nitrogen in Plants 
Pfeffer, W. — Absorption and Elimination of Solid Substances by Cells 
Lamarlieiie, G. de — Assimilation in Umbelliferx 
Otto, R. — Assimilation of free atmospheric Nitrogen 
Schmidt, R. M. — Absorption and Metabolism of Fatti 
(3) Irritability. 
Leveille, H. — Action of Water on Sensitive Movements 
Paoletti, G. — Movements of the Leaves of Porlieria hygrometrica 
Ville, G. — Sensitiveness of Plants to certain Salts 
Hansgirg, A. — Sensitive Stamens and Stigmas 
, „ Nyctitropic Movements of Leaves 
„ „ Carpotropic Curvatures of Nutation 
Koch, A. — Influence of Gravitation on the Sleep-movements of Leaves 
Bastit, E. — Heliotropism aud Geotropism in Mosses 
Arcangeli, G. — Compass-plants 
Steinbrinck, C. — Anatomico-physical causes of Hygroscopic Movements 
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Part 2 
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Part 3 
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370 
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Part 4 
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Part 5 
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Part 6 
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Part 1 
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Part 2 
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Part 3 
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373 
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Part 4 
496 
Part 6 
771 
