Xxii CONTENTS. 
TAGE 
Ekstam, O., & others — Cross -pollination and Self-pollination 451 
I )e’ Bonis, A . — Cleistogamous Flowers 451 
Millardet, A . — Hybridisation without Crossing 451 
Nawaschin, S . — Chalazogamy of the Birch 548 
Chamberlain, C. J. — Embryo-sac of Aster 548 
Schilberszky, K . — Sexual Organs of Convolvulus arvensis 549 
Mottier, D. M .— Embryology of the Ranunculacese 054 
Nawaschin, S . — Embryology of the Hazel .. 654 
£3) Nutrition and Growth (including' Germination, and Movements 
of Fluids). 
Meissner, R . — Activity of Assimilation in Leaves 71 
-Kny, L . — Correlation in the Growth of Roots and Shoots 71 
Peirce, G. J . — Penetration of Roots into Living Tissues 71 
Meyer, A., & A. Dewevre — Insectivorous habit of Drosopliyllum 71 
Vochtino, H . — Symbiosis as the result of Grafting 72 
Daniel, L. — Grafting of Herbaceous Piants 72 
Ewart, A. J. — Vitality and Germination of Seeds 72 
Wollny, E., & A. M. Villon — Influence of the Different Rays of L'ght on Assimi- 
lation and Transpiration 72 
Vochtino, H . — Influence of Light on the Structure of the leafy Cactacese .. . . 73 
Jost, L . — Influence of Light on the Buds of the Copper-beech 73 
Green, J. R . — Influence of Light on Diastase 73 
Peter, A . — Germination of Dormant Seeds 197 
Pirotta, R . — Germination of Keteleeria 197 
< iuFPY, H. B .— Habit of Lemna 198 
Noll, F . — Exotropism of the Root-system 198 
Muller, P, E . — Influence of Worms on the Growth of Rhizomes 198 
Demoussy — Assimilation of Nitrates by Hants 198 
Nobbe, F., & L. Hiltner — Absorption of Free Nitrogen by Plants 198 
Wiesner, J . — Amount of Light which is favourable to the Growth of Plants .. .. 334 
Goebel, K . — Action of Light on the Form of Plants 334 
Mer, E . — Effect of Climatic Conditions on the Groivih of Trees 334 
Albert, P . — Development of Buds 335 
Breal, E . — Nutrition of Plants by Humus 335 
AVieler, A . — Periodicity in the Formation of Roots .. .. 335 
Heinricher, E . — Germination of La thr tea ' 335 
Wiesner, J . — Protection of Chlorophyll * .. .. 335 
Dixon, H. H., & J. Joly — Ascent of Sap 335 
Tschirch, A . — Germination of Myristica fragrans 452 
Bokorny, T . — Influence of Calcium and Magnesium on the Development of the Cell 452 
Gain, E . — Action of the Water of the Soil on Vegetation 452 
Anderson, A. P . — Grand Period of Growth in the Fruit of Cucurbita 452 
Pfeffer, W . — Growth of the Root 453 
Jost, L . — Dependence of the Leaf on its Power of Assimilation 453 
Blackman, F. F. — Assimilation and Respiration 453 
Winkler, A., & F. Tognini — Abnormal Germination 549 
Buchwald, J . — Distribution of Leguminosse .. .. 549 
Mer, E . — Influence of Climatic Conditions on the Growth of Firs 549 
Askenasy, E . — Ascent of Sap .. „ 550 
Candolle, C. de — Latent Life of Seeds 6 55 
Lo Forte, G . — Dispersion of Seeds 655 
Muller, F . — Germination of Bromeliacese 655 
Toumey, J. W . — Propagation of Opuntia 656 
Silvestri, A . — Parasitism of Cuscuta 656 
Nicotra, S . — Influence of Lime on Vegetation 656 
Noll, F . — Influence of Phosphates on the Growth of Plants 656 
Hartig, R . — Torsion of Pine-trees 656 
Billwiller, J . — Assimilation of Nitrogen by the Papilionacese 656 
Gain, E . — Action of the Water of the Soil on Vegetation 657 
(3) Irritability. 
I’othert, W . — Heliotropism 73 
Meissner, R . — Movements of Zygomorphic Flowers 74 
