CONTENTS, XX111 



PAGE 



Winkler, Hans — Parthenogenesis in Wikstrcemia indicu 328 



Bibliography 329 



Gebber— Structure of the Flower in CruciJ 'era: 450 



Muller, W. — Inflorescence of Boraginacex and Solan acex 450 



Lotscber, P. K. — Structure and Function of the Antipodal Cells 450 



Strasburger, E. — Apogamy in Alchemilla 451 



Toumey, J. W. — Notes on the Fruits of Opuntia 451 



Bibliography 452 



Thomson, R. B. — Megaspore Membrane in Gymno*perms 604 



Roncati, N. — Development in Ovule and Seed of Anona ,. 604 



Frye, T. C, & E. B. Blodgett — Points in the Life-History of Apocynum .. .. 604 

 Riddle, L. C. — Development of the Embryo-sac and Embryo of Batrachium longi- 



rostris 605 



Johnson, D. S. — Seed- Development in the Piperales 605 



Shattdck, C. H. — Morphological Study of Ulmus americanus 710 



Physiology. 



Nutrition and Growth. 



Moller, A., & F. W. Neger — Mycorhiza of Pines 65 



Nikolski, M. — Nutrition of Fungi by Carbohydrates 66 



Pierce, G. J. — Artificial Parasitism 66 



Charabot, E., & G. Laloue — Distribution of Essential Oil in an Annual Plant .. 67 



Haberlandt, G. — Sense-organs of Plants 67 



Raunklaer, C. — Appreciation of Depth in Rhizomatous Plants 67 



Kuster, E. — Formation of Moots and Shoots in Cuttings 67 



Molliard, Marin — Animal Parasites and Floral Teratology 68 



Milburn, T. — Colour Changes in Fungi and Bacteria 68 



Dauphin, J. — Influence of Radium on the Growth of Fungi 69 



Becquerel, P. — Germination of Moss-Spores and the Nutrition of their Protonemas 



in Artificial Media 69 



Laurent, J. — Carbon Nutrition of Green Plants by Organic Substances 197 



Bergen, J. Y. — Relative Transpiration of Old and New Leaves of the Myrtus Type 198 

 Kellicott, W. E. — Daily Periodicity of Cell-division and of Elongation in the Root 



of Allium 198 



Ursprung. A. — Periodicity of Groioth in Thickness in the Tropics 198 



Spalding. Effie S. — Mechanical Adjustment in Cereus giganteus to Varying Quan- 

 tities of Stored Water 329 



Gallaud, J. — Study of Endotropic Mycorhiza 329 



Schellenberg, H. C. — Hemicellulose as a Reserve Substance in European Forest- 

 Trees 330 



Tschirch, A. — Heterorhizy in Dicotyledons 330 



Moore, G. T. — Soil Inoculation for Leguminous Plants . . 452 



Snow, L. M. — Development of Root-Hairs 606 



Gins, L. — Arrangement of Starch in the Starch-Sheath of the Perianth of Clivia . . 607 



Dixon, H. H. — Supply of Water to Leaves on a Dead Branch 711 



Cannon, W. A. — Transpiration of Fouquieria splendens 711 



Livingston, B. E. — Relation of transpiration to Growth in Wheat 712 



Gallaud, I. — Endotropic Mycorhiza 712 



Dauphin, J. — Groivth of Fungi in Artificial Media 713 



Irritability. 



Haynes, Julia A. — Geotropic Response in Stems . . .. t 330 



Tischler, G. — Distribution of Statoliths in Roots 331 



Teodoresco, E. C. — The Effect of Low Temperature on Zoospores of Algm .. .. 331 



Livingston, B. E. — Chemical Stimulation of a Green Alga 332 



Neger, F. W. — Germination of Spores 332 



Stracke, G. J. — Immunity of Plants to their oion Poison 453 



Molisch, Hans — Heliotropism Induced by Radium 607 



Kinzel, W. — Influence of Light on Sporogonium-formation in Liverworts .. . . 607 



