CONTENTS. 
XX Y 
Rimpau, W.— Crossing of Cultivated Plants 
Cobelli, R. — Pollination of the Primrose 
Meehan, T., & M. Reed— Cross- and Self-pollination 
Riley, C. Y . — Pollination of Yucca 
Buchenau, F . — Pollination in the Juncacese 
Riley, C. Y . — Fertilization of the Fig 
Ascherson, P . — Pollination of Cyclamen persicum . . . . 
Magnin, A. — Parasitic Castration of Lychnis and Muscari 
Martin, G. W. — Embryo-sac of Aster and Solidago 
Meehan, T . — Proterandry and Proterogyny 
Wehrli, L., & C. A. Newdigate — Pistillody of Male Catkins of Hazel . . 
Macfarlane, J. M. — Structure of Hybrids 
Newell, J. H., & others — Cross and Self-pollination 
Roze, E. — Pollination of Naias and Ceratophyllum 
Munson, W. M. — Secondary Effects of Pollination 
Willis, J. C . — Gynodioecism in the Labiatse 
Strasburger, E . — Process of Impregnation 
Nawaschin, S., & C. Fritsch — Embryogeny of the Birch 
Hildebrand, F., & L. Trabut — Distribution of Sexual Organs in Plants 
Naudin, C . — Fertilization of the Date-palm 
Heckel, E. — Sexuality of Ceratonia Siliqua 
Noll, F . — Hermaphrodite Flowers in the Larch 
Heinsius, H. W. — Pollination by Insects 
Kirchner, O. — Anemophilous and Entomophilous Plants 
Pammel, L. H . — Perforation of Flowers by Insects 
Mottier, D. M. — Embryo-sac and Embryo of Senecio aureus 
Belajeff, W. — Pollen-tube of Gymnosperms 
Golinski, St. J. — Androeceum and Gynceceum of Grasses 
Solms-Laubach — Fertilization of the Fig 
Baroni, S. — Pollination of Bohdea 
Molliard — Parasitic Castration of Knautia arvensis 
of Fluids). 
Bonnier, G. — Effect of the Electric Light on Vegetation 
Wiesner, J . — Influence of Position on the Form of Organs 
Berthoud, E. L. — Dissemination of Plants by Buffaloes 
Walker, E. — Dissemination of the Seeds of Oxalis stricta 
Tschirch, A. — Physiology and Biology of Seeds 
Arcangeli, G. — Parasitism of Cynomorium 
Jost, L . — Growth in Thickness of Trees 
Jentys, S . — Influence of an Excessive Proportion of Carbonic Acid on the 
Growth of Roots 
Bokorny, T . — Assimilation of Carbon dioxide 
Kossowitsch, P., & others — Mode of Absorption of Free Nitrogen by the 
Leguminosx 
Frank, B . — Exchange of Gases in the Root-tubercles of Leguminosse 
Rowlee, W. W . — Adaptation of Seeds to Germination 
Janczewski, E. de — Germination of Anemone 
Vochting, H . — Transplantation on parts of Plants 
Mobius, M . — Influence of External Conditions on the Flowering of Plants 
Hoveler, W . — Importance of Humus for Plants 
Wieler, A. — Bleeding of Plants 
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