CONTENTS. XXV 



$. Physiology.* ^^^^ 



Adeianowsky, a. — Influence of Light on the Germination of Seeds , . Part 1 93 

 WoLLNY, E. — Effect of Depth of Sowing on the Germination and Growth 



of Plants „ 93 



Hellriegel — Influence of Water on the Growth of Plants „ 93 



MoLLER, H. — Respiration of Plants „ 94 



Bonnier, G., & L. MMSGXS^Respiration of Tissues not containing 



Chlorophyll „ 94 



ScHUTZENBERGER, P. — Respiratory Combustion „ 9.5 



Ambronn, H. — Heliotropic and Geotropio Torsion „ 95 



FiRTSCH, G. — Geotropio Sensitiveness of the Apex of the Root .... „ 96 

 MoLTSCH, H. — Deviation of Roots from their Normal Direction through 



the Influence of Gases ,, 96 



ScHULZE, C. — Albuminoid Constituents of Plants „ 97 



Vries, H. DE — Periodical Formation of Acids in Succulent Plants , . ., „ 97 



JoRissEN, A. — Production of Hydrocyanic Acid by Plants „ 97 



Brasse, L. — Presence of Amylase in Leaves „ 97 



SORBY, H. C. — Autumnal Tints of Foliage „ 97 



Detmer, W. — Formation and Fermenting Action of Diastase „ 98 



Kruttschnitt, J., & N. L. Britton — Fecundation of Ovules in 



Angiosperms .. .. Part 2 270 



Treub, M. — Embryo of Cycadex , 270 



„ „ Embryo of Barringtonia „ 271 



Meehan, T. — Fertility of Hybrids „ 271 



Jorissen, A. — Gei-mination of Flax and Sweet Almond „ 271 



EuLF, P. — Behaviour of Tannin in Germination „ 272 



Wettstein, E. v. — Laws of Growth of Vegetable Organs : Roots .. . . „ 272 



WiESNER, J. — Motions of Roots during Growth „ 272 



Fraser, a. T. — Autumnal Foliage „ 272 



Bonnier, G., & L. Mangin — Respiration of Germinating Seeds .. .. „ 272 



DuFOUR, J. — Influence of Gravitation on the Movements of Stainens ., „ 272 



Mer, E. — Nyctitropic Movements of Leaves .. „ 273 



Wiesner, J. — Mechanical Explanation of Spontaneous Nutations ,. . . „ 273 



Wortmann, J. — Secondary Geotropio Phenomena , 273 



Elfving, F. — Ascent of Water in Plants „ 274 



Emmerling, a. — Formation of Albumen in Green Plants „ 274 



Detmer, W. — Formation of Hydrochloric Acid in Plants „ 274 



Latves, J. B. — Source of the Nitrogen in Plants „ 275 



Berthelot & Andre — Formation of Nitrates in Plants „ 275 



Jorissen, A. — Reducing Properties of Seeds and Formation of Diastase . „ 276 

 Carnol, a. — Composition of Mineral Oil in relation to the Plants ichich 



have produced it „ 276 



JoHANNSEN, W. — Development of the Endosperm in Hordeum . . . . Part 3 485 



Hellriegel, H. — Influence of Light and Heat on Plant Development .. „ 485 

 ,, „ Evaporative Surfaces of Plants and Influence of 



Moisture in Soils on Plant Growth „ 486 



* This subdivision contains (1) Eeproduction (including the formation of 

 the Embryo and accompanying processes); (2) Germination; (3) Nutrition; 

 (4) Growth; (5) Eespiration; (6) Movement; and (7) Chemical processes 

 (including Fermentation). 



