XXIV 
CONTENTS. 
PAGE 
Arcangeli, G . — Flowering of Arum pictum 215 
Tieghem, P. van — New Case of Basigamy 321 
Coulter, J. M . — Embryology of Ranunculus 321 
Longo, B . — Embryogeny of Rosacea and Calycanthacese 322 
Pritzel, E . — Embryo and Endosperm in the Parietales 322 
Campbell, D. H . — Embryology of Naias and Zannicliellia 322 
Wiegand, K. M. — Embryology of Potamogeton 323 
Preda, A. — Embryo-sac of Hybrid Narcissi 323 
Swingle, W. T . — Theories of Heredity 323 
Goldflus, M . — Embryology of Composite 443 
Campbell, D. H . — Development of the Embryo in Lilsea subulata 443 
Ganong, W, F. — Polyembryony in Opuntia 444 
Ikeno, S. — Centrosome-like Body in the Pollen-tube of Cycadeze 444 
Ekstam, O., & others — Cross-Pollination and Self-Pollination 444 
Saunders, W . — Experiments on Hybridising 445 
Linton, E. T . — Hybridisation of Willows 445 
Gagnepain, F . — Hybrid between Lychnis diurna and L. vesperiina 445 
MacMillan, C . — Orientation of the Plant-Egg 555 
Treub, M . — Structure of the Female Organ and Apogamy in Balanophora .. .. 555 
Lyon, Florence M . — Embryogeny of Euphorbia :. 556 
Smith, W. R . — Embryogeny of the Pontederiacese 556 
Knuth, P., & others — How Flowers attract Insects 556 
Gerber, C . — Pollination of Cistus 557 
Seurat, L. G . — Pollination of the Cactacess 557 
Juel, H. O., & E. L. Greene — Parthenogenesis in Antennaria 557 
Blackman, V. H . — Fertilisation in Pinus 644 
Lotsy, J. P . — Embryology of Gnetum , 645 
Peters, C. A . — Embryology of Drosera 645 
Rowlee, W. W., & M. \V. Doherty — Embryo of Indian Corn.. .. 645 
Johow, J . — Ornithophilous Flowers , .. 646 
Webb, R. J., & others — Cross-pollination and Self-pollination 646 
Abbado, M . — Hybridism 647 
Knuth’s Handbook to the Biology of Floicers 647 
(2) Nutrition and Growth (including- Germination, and 
Movements of Fluids). 
Kny, L . — Dependence of the Chlorophyll-Function on the Chromatophores and the 
Cytoplasm 101 
Daniel, L . — Mixed Grafts 101 
Laurent, J . — Absorption of Organic Matters by Roots .. 101 
Atkinson, G. F . — Influence of the Rbntgen Rays on Vegetation 101 
Kohl, F, G . — Assimilating Energy of Blue Light 101 
Dassonville — Action of Mineral Salts on the Structure of the Lupin 102 
Wollny, E. — Influence of Atmospheric Precipitation on the Growth of Plants .. 102 
Escombe, F . — Germination of Seeds 102 
Czapek, F . — Conduction of Organic Food-Materials in Plants 215 
Ewart, A. J . — Effects of Tropical Insolation 215 
Townsend, C. O . — Correlation of Growth under the Influence of Injuries .. .. 216 
Darwin, F . — Hygroscopic Function of Stomates 216 
Heller, R . — Influence of Electric Currents on the Lower Organisms 216 
Copeland, E. B . — Relation of Nutrient Salts to Turgor 217 
Brown, H. T., & F. Escombe — influence of Low Temperatures on the Germinative 
Power of Seeds 217 
Thomas, M. B . — Periodicity of Root-Pressure 217 
Devaux, M. H. — Aeration of the Trunks of Trees 217 
Lopriore, G . — Action of Organic Acids on Groivth 323 
Maldiney & Thouvenin — Influence of the Rbntgen Rays on Germination .. .. 324 
Wiesner, J . — Germination of the Mistletoe 324 
Rosenberg, O . — Transpiration of Halophytes 324 
Mayer, A . — Movement of the Sap in Plants 324 
Lopriore, G . — Action of the Rbntgen Rays on the Protoplasm of the Living Cell .. 445 
Lutz, L . — Nitrogenous Nutrition of Plants 446 
