Xxii CONTENTS. 



PAGE 



HiLDEBRAND, F.— Protective Contrivances in the Bulbs of Oxalis . . . . Part 1 92 



Baky's (A. de) Vegetative Organs of Phanerogams and Ferns .... „ 93 



Gl'IGNARD, L. — Structure and Division of the N'uclcus Part 2 262 



Brass, A., & Fraisse, & H. FOL — Chronuxtin in Cell-division .. .. „ 263 



Famintzix, a. — Siliceous 3fembrane with Properties of the Cell-wall .. „ 263 



TSCHIRCH, A. — Chemical Peactions of Chlorophyll „ 264 



Hansen, A. — Colouring-matters of Flowers and Fruits „ 264 



Pick, H. — Red Pigment of Phanerogams ., 265 



Baccarixi, p. — Mechanical Function of Crystals of Calcium Oxalate . . „ 265 



TscHiRCH, A. — Starch-meal „ 265 



Leblois, A. — Function of Latex in the Composite „ 266 



Geosglik, S. — Influence of Light on the Development of the Assimilating 



Tissue of Leaves „ 266 



TiEGHEM, P. VAN — Cortical Fibrovascular Bundles of Viciex .. .. „ 266 

 ScHENCK, H. — Formation of Centrifugal Thickenings in the Walls of 



Hairs and in the Epidermis „ 267 



MoBius, K. — Mechanical Sheaths to Secretion-receptacles „ 267 



TiEGHEM, P. VAN — Curvature of Ovules „ 267 



BIeehan, T. — Sexual Characters in Zinnia „ 267 



„ „ Elasticity in the Filaments of Ildianthus „ 268 



Gray, A. — Movements of Andrcecium in Sunfloicers „ 268 



Schrenk, J. — Hdustoria of Parasitic Phanerogams „ 268 



Maye H. — Organs of Secretion in Pines and Larches „ 269 



Macfablane, J. M. — Distribution of Honey-glands in Pitchered Insec- 

 tivorous Plants „ 269 



FoERSTE, A. F. — Nectar-Glands of Apios tuberosa „ 269 



Wetuered, E. — Structure and Origin of Carboniferous Coal Scams 



{Plates VIII. and IX.) Part 3 406 



Tangl, E. — Continuity of Protoplasm „ 473 



GriGNARD, L. — Structure and Division of the Cell-nucleus , 474 



Beknimovlin, E, — Division of the Cell-nucleus in Tradcscantia . . . . „ 475 



ScHWABZ, F. — Behaviour of the Nucleus after Division „ 475 



TscHiRCH, A. — Morphology of Chlorophyll-grains „ 475 



Weiss, A. — Soluble Yellow Pigment in the Petals of Papaver „ 476 



„ „ Spontaneous Movements of Pigment-bodies ,, 476 



Kravs, 0. — Excretion of Healing Substances into Wounds „ 476 



Sciiwendener, S. — Firmness of Tissues „ 476 



Zimmermann, a. — Behaviour of the Optical Axes of Elasticity of 



Cell-walls under Tension „ 476 



Fischer, A. — Sieve-tuhe System of Cucurbitaceie „ 477 



Famintzin, a. — Development of the Sclerenchymatous Fibres of the 



Oleander „ 478 



Krabbe, G. — Growth of the Thickening-ring in Exogcns „ 478 



KoTHROCK, J. T. — Internal Cambium Ping in Gclsemium sempervirens „ 478 

 TsCHiBCH, A. — Penetration of the Mechanical Ping for the Transport of 



Food-material „ 479 



MiJLLER, C — Stolons of Sagittaria sagittaefolia .. „ „ 479 



Vuillemin, p. — Anatomical Structure of the Stem of Composite . . . . „ 480 



CosTANTiN, J. — Structure of the Stem of Aquatic Plants „ 480 



HiLLEB, G. H. — Epidermis of Petals „ 481 



