CONTENTS. 
XXlll 
(3) Irritability. page 
Newcombe, F . — Rlieotropism 54 
MacDougal, D. T . — Transmission of Irritation in Sensitive Plants 143 
Hart, J. H . — Irritability of Catasetum 144 
Hansgirg, A . — Gamotropic and Carpotropic Movements of the Flowers of Grasses . . 144 
,, „ Phyllocarpy 144 
Borzi, A . — Mechanism of the Phenomena of Sensitiveness 220 
Oltmanns, F . — Positive and Negative PLeliotropism 221 
Ewart, A. J . — Aerotropism of Roots 221 
Jost, h. -Periodic Movements of the Leaves of Mimosa in the Dark 312 
Bullot, G . — Growth and Curvature of Phycomyces 312 
Kolkwitz, R . — Movements of Swarm-Spores, Antherozoids, and Plasmodes . . . . 412 
Hansgirg, A . — Gamotropic and Carpotropic Movements 412 
„ „ Ombrophoby of Flowers 412 
Macdougal, D. T . — Curvature of Roots 413 
Clifford, J. B . — Rlieotropism and Thermotropism in a Plasmode 413 
Stahl, E . — Sleep of Plants 557 
Schwendener, S . — Sensitive Cushions in Mimosa 558 
(4) Chemical Changes (including Respiration and Fermentation). 
Lidforss, B . — Physiology and Biology of Winter-Green Plants 55 
Hansteen, B . — Formation of Proteids from Asparagin 144 
Gruss, J . — Formation and Dissolution of Hemicellulose 145 
Richard^, H. M . — Respiration of Wounded Plants 145 
Godlewski, E., & others — Nitrification 145 
Kosutany, T . — Formation of Proteids in Plants 221 
Sablon, Leolerc w du — Formation of N on-nitrogenous Reserve-Substances in the 
Almond .. .. 221 
Richards, H. M . — Evolution of Heat by Wounded Plants 221 
Green, J. R . — Action of Light on Diastase 222 
Brown, A. J . — Fermentative Power 222 
Buchner, E . — Alcoholic Fermentation without Yeast 222 
Lafar, F . — Technical Mycology 222 
Pfeffer, W . — Formation of Diastase 312 
Sablon, Leclerc du — Germination of the Almond 312 
Emmerling, O . — Fermentation produced by Moulds 313 
Gerber, G . — Influence of Temperature and Nutriment on the Respiration of Fungi 313 
Gruss, J . — Action of Diastase on Reserve-Cellulose in Germination .. .. .. .. 414 
Buchner, E . — Alcoholic Fermentation without Yeast-Cells 414 
Deherain, P. P . — Reduction of Nitrates 414 
Schulze, E . — Nitrates in Seedlings 415 
Coupin, H . — Mucilage Excreted by Seeds 558 
Gruss, J . — Secretion by the Scutellum 558 
Cummins, H. A . — Function of Antitoxins 559 
Buchner, E . — Advances in the Chemistry of Fermentation 559 
Emmerling, O . — Butylalcohol Fermentation 559 
y t General. 
Bessey, C. E . — Divergence of Monocotyledons and Dicotyledons .. 55 
Wille, N. — Graft- Hybrid 55 
Williamson, W. C., & D. H. Scott — Fossil Plants of the Coal-Measures .. .. 55 
Tieghem, P. van — New Classification of Flowering Plants .. .. 313 
Fry, Sir E . — Alternation of Generations 314 
Schroter, C. — Plankton-Flora of the Swiss Lakes 314 
Wiesner, J . — Mechanical Effect of Rain on Plants 560 
Molisch, H . — Freezing of Plants 560 
