XXVI CONTENTS. 



PAGE 



KORSCliELT, P. — Apical Growth of Phanerogams Part 3 487 



ZiMMERMANN, A. — Causes of Aiiisotropt/ of Organic Substances ,. ., „ 487 



Phipsox, T. L. — Chemical Phenomena of the Respiration of Plants .. ,, 488 



Bonnier, G., & L. Mangin — Respiration of Leaves in Darkness .. .. „ 488 



Vesqce, J. — Movement of Ascending Sap „ 489 



GoDLEWSKi, E. — Movement of Water in Plants „ 490 



Westermaier, M. — Importance of Dead Tubes and Living Cells for the 



Conduction of Water in Plants , 490 



Hansen, A. — Supply of Air to the Roots and Root-pressure ,, 490 



RiMMER, F. — Nutations of Seedlings „ 490 



Stahl, E. — Influence of Light on Geotropism „ 491 



Hansen, A. — Peptonizing Ferments in Secretions „ 491 



Hoffmann, H. — Production of Male and Female Plants Part 4 677 



JoNSSON, B. — Fertilization of Naias and Callitriche „ 677 



BtJTSMAN — Influence of direct Sunlight on Vegetation „ 678 



Deherain, P. p., & L. Maquenne — Absorption of Oxygen and Evolution 



of Carbon dioxide in Leaves kept in DarkTiess ,, 678 



Bonnier, G., & L. Mangin — Variation of Respiration with Development „ 679 



WoKTMANN, J. — Thermotropism of Roots „ 679 



ScHEiT, M. — ^j> ift Water-conducting Wood ,, 679 



Ladureai:, a, — Ammoniacal Ferment „ 680 



DiETZELL, B. E. — Source of the Nitrogen of the Leguminosse „ 680 



Atwater, W. O. — Absorption of Atmospheric Nitrogen by Plants . . „ 680 



CoRRY, T. H. — Fertilization of Asclepias Cornuti Part 5 834 



Keacs, G. — Blooming of Arum italicum „ 835 



Bronold, a., Holdefleiss, & SCHOLLEB — Influence of Electricity on 



the Groicth of Plants „ 835 



Bonnier, G,, & L. Mangin — Respiration of Plants „ 835 



„ „ Respiration of Plants at different seasons . „ 836 



Brunchoest, J. — Galvanotropism of Roots , 836 



Janse, J. M. — Movement of Water in Plants , 836 



Kraus, C. — '■^ Bleeding" of Parenchymatous Tissues „ 837 



BuEGERSTEiN, A. — Physiologicol and Pathological Effect of Camphor on 



Plants „ 837 



TmiRiAZEFF, C. — Chemical and Physiological Action of Light on Chlo- 

 rophyll „ 837 



STRASBrRGER, E. — Theory of Descent Part 6 1027 



STrRTEVANT, E, L. — Hybridization and Cross-breeding of Plants .. .. „ 1028 



FoERSTE, A. E. — Fertilization of the Wild Onion „ 1028 



Barnes, C. E. — Fertilization in Campanula americana „ 1028 



DucHARTRE, P. — Influence of Want of Moisture on the Growth of the 



Chinese Yam „ 1029 



BuRRiLL, T. J. — Mechanical Injury to Trees by Cold , 1029 



Jamieson, T. — Esscrdial Food of Plants „ 1029 



Martin, S. — Digestion of Proteids in Plants „ 1030 



Hansen, A. — Ferments and Enzyma „ 1031 



Vesqce, J. — Ascent of Sap „ 1031 



KisCHAWi, L. — Galvanotropism .. .. „ 1032 



Hansen, A. — Transpiration-currents „ 1032 



Knop, W. — Absorption by the Plant of Non-nutrient Substances .. .. „ 1032 

 ScHRODT, J. — Bursting of the Sporangium of Ferns and the Anther of 



Flowering Plants „ 1032 



