CONTENTS. XXI 



BOTANY. 



A. GENERAL, including the Anatomy and Physiology 

 of the Phanerogamia. 



o. Anatomy. 

 (1) Cell-structure and Protoplasm- 



PAGE 



Timberlake, H. G. — Development and Function of the Cell-plate .. .. ... .. 48 



M'Comb, Amanda — Development of the Karyokinetic Spindle in Vegetative Cells .. 48 



Lawson, A. A. — Cones of the Multipolar Spindle 48 



Nemec, B. — Formation of Vaciwles 49 



Boulet, V. — Membrane of Hydroleucites 49 



Steinbrinck, C. — Permeability of the Cell-wall for Air 49 



Bernard, Ch. — Attractive Spheres in Angiosperms 167 



Kohl, F. G. — Dimorphism of Protoplasmic Connecting Threads 167 



Dixon, H. H. — First Mitosis of Spore-mother-cells of Lilium 168 



Ott, Emma — Hardness of Vegetable Membranes 168 



Steinbrinck, C. — Shrinking of the Cell-wall 168 



Miehe, H. — Movements of the Nucleus 288 



Byxbee, Edith, S. — Development of Karyokinetic Spindle in Pollen-mother-cells of 



Lavatera 2S8 



Hill, Arthur W. — Connecting Threads of Protoplasm in Pinus 289 



Schutt, F. — Centrifugal and Simultaneous Thickenings of the Membrane . . . . 289 



Kornicke, M. — Movements of Nuclei 548 



Nemec, B. — Centrosome-like Structures in the Vegetative Cells of Vascidar Plants.. 548 



Sonntag, P. — Lignitication of the Cell-wall 549 



Nemec, B. — Fibrillar Structure of Protoplasm 656 



Yamaxocchi, S. — Cenfrosomes in the Pollen-mother-cells of Lilium longiflorum . . 656 



Josixg, E. — Influence of External Conditions on the Streaming of Protoplasm . . 657 



Schaffner, J. H. — Cytology of Erythronium 657 



Claussen, P. — Permeability of the Walls of Tracheids for Atmospheric Air .. .. 658 



Dkyaux, H. — Fixation of Metals by the Cell-ioall 658 



(2) Other Cell-contents (including- Secretions). 



Tstett — Blue Chlorophyll 50 



Kroemer, K. — Alleged Violet Chromatophores 50 



Bokorny, Th. — My rosin in Plants 50 



H arlay, V. — Proteolytic Enzyme of Germinating Seeds 50 



Loew, O. — Neiv Enzyme 50 



Schlagdenhauffen & — . Beeb — New Glucoside from Erysimum 50 



Laurent, J. — Exosmose of Diastases 51 



Bourquelot, E., & H. Herissey — Seminase in Seeds 51 



Martinaud, V. — Presence of an Inverting Sugar in Grapes 51 



Bourquelot, E., & H. HeribSEY — Simultaneous Occurrence of Two Sugars .. .. 51 



Tschirch, A., & H. Kritzler — Composition of Aleurone-grains 168 



Peter, A. — Compound Starch-grains 169 



Moebius, M. — Anthophsein, a Brown Pigment of Flowers 169 



Greshoff — Alkaloids of the Composite 169 



Butkewitsch, W. — Proteolytic Enzyme in Germinating Seeds 1 69 



Hazewinkel, J. J. — Indican and its Enzyme 1 < « 1 » 



Wolff, J. — Presence of Methyl-alcohol in the Ferments of Certain Fruits .. .. 169 



Tsvett, M. — Chlorophyllins and Metachlorophyllins 290 



Bokorny, Th. — Myrosin .' 290 



