XXIV CONTENTS. 



TAGE 



Kovessi, F. — Relation of the Supply of Water to the Ripening of Woody Flan fa .. 73 



Jurie, A. — Hybridisation by Grafting , .. 73 



Daniel, L. — Grafting, Pinching, and Annular Decortication 73 



Friedel, J., & M. Hauroy — Chlorophyll Assimilation of Cut Leaves 73' 



Boyer, G. — Vitality of Leaves after their Fall 73 



Arker, J. — Influence of the Surrounding Medium on the Growth of Roots . . . . 74 



Genau, K. — Development of Sauromatum guttatum Schott 202 



Andre, G. — Nutrition of the Seedling at the Expense of its Cotyledons 203' 



Fortheim, L. Ritter v. — Necessity of Lime for Plants 203 



BIarchal, E., & E. Laurent — Influence of Mineral Salts on the Production of 



Root-tubercles in Pisum 203 



Miani, D. — Action of Copper on the Growth of Living Cells 203 



Arber, A. E. N. — Nitrates and the Carbon-Assimilation of Algae 204 



Bcrgerstein, A. — Germinating Power of the Seeds of Cereals 204 



Gain, E. — " Ageing " of the Embryo of Grasses 204 



Jost, L. — Theory of the Shifting of Lateral Organs through Mutual Pressure .. .. 322 



Kny, L. — Influence of Tension and Pressure on the Direction of the Celt- Wall .. 322. 



Sperlich, A. — Suckers of the Green Rhinanthacese 323 



Charpentier, P. G. — Assimilation of Carbon by a Green Alga 323 



Renard, Le — Chemauxism of Copper Salts on Penicillium glaucum 324r 



Cavara, F. — Resistance to Salt Solution 324 



Heinricher, E. — Green Hemiparasites 451 



Vochting, H. — Germination of Potato Tubers 452 



Deherain, P. P., & C. Dupont — Cultivation of Beet-root 452- 



Schulze, E. — Leucine and Tyrosine as Food-stuffs 452. 



Pitsch, O. — Yield of Leguminous Plants 452 



Clausen, H. — Influence of Nitrogenous Manures on the Form of Cereals .. .. 453 



Piccioli, L. — Soils suitable for Chestnuts 453 



Eemy, T., & O. Englisch — Nutrition of Hops 453 



Hanusch, F. — Value of Green Manures 453 



Gerlach, M. — Value of Kainite 453 



Leisering, B. — Shifting in Heads of Sunflower during Development from Flowering 



to Ripening 453 



Correns, C. — On the Separation of Cliaracters in Hybrids of the Pea Type .. . . 454 



Curtis, C. C. — Observations on Transpiration 572. 



Shunsuke Kusano — Transpiration of Evergreen Trees in Winter 573 



May, W. — Relations of Calcium and Magnesium to Plant Growth 573 



Andre, G. — Accumulation of Mineral and Organic Matter in Woody Plants .. .. 573 

 Brown, H. T., & others — Influence of Varying Amounts of Carbon Dioxide in the 



Air on Photosynthesis and Plant Growth 668 



Poisson, Jules — Duration of Germinating Power of Seeds 66£* 



Irritability. 



Blackman, F. F., & Gabrielle L. C. Matthaei — Reaction of Leaves to Traumatic 



Stimulation 74 



Massart, M. J. — Irritability of the Higher Plants 74 



Wiesner, J. — Position of Flowers ivith respect to Light 204 



Selby, A. D. — Resistance of Seeds to Low Temperatures 204 



Andre, G. — Action of Temperature on the Absorption of Minerals in Etiolated 



Plants 324 



Schulz, N. — Light and Spore-Germination 324 



Newcombe, F. C. — Rheotropism of Roots 454 



Seckt, H. — Influence of X-rays on the Plant Organism 455 



Passerini, N. — Effect of Sunshine on Plants 574 



Tompa, A. — Electrical Phenomena in Plants 574 



Bose, J. C. — Electric Response in Plants under Mechanical Stimulus 574 



Darwin, F. — Method of Investigating the Gravitational Sensitiveness of the Root- 

 tip 575 



Sukatscheff, L. — Action of Alcohol on Germination of some Seeds 575 



McCallum, W. B. — Nature of the Stimulus causing the Change of Form and Struc- 

 ture in an Amphibious Plant 669 



Heald, F. D.— Electrical Conductivity of Plant Juices .. .. 669 



