xsiv contf:nts. 



PAGE 



Vries, H. de — Plasmolytic Studies of the Membrane of Vacuoles .. .. Part 4 637 



„ „ Aggregation of Protoplasm in Drosera „ 638 



Hoffmann, E. — Influence of Mechanical Forces on Cell-division^ &c. . . „ 639 



SCHIMPER, A. F. W. — Chlorophyll-grains and Chromatophores .. .. „ 640 

 Meyer, A. — Formation of Starch-grains in leaves from Sugar, Mannite, 



and Glycerin „ 642 



Laurent, E. — Formation of Starch out of Glycerin „ 643 



Westekmaier, M. — Function of Tannin „ 643 



Planta, A. V. — Nectar „ 643 



Green, J. R. — Proteid Substance in Latex ,, 644 



ScHULZE, E., & E. BossHARD — New Nitrogenous Constituent of Plants .. „ 644 



Mentovich, F. v. — Pith of Dicotyledons „ 644 



McEBlUS, M. — Mechanical Sheaths of Secreting Vessels „ 645 



Zache, E. — Medullary Bays of Dicotyledons „ 645 



Beyerinck, M. W. — Normal Boot-huds „ 645 



Velenovsky, J. — SeiHal Buds „ 646 



Linde, 0. — Anatomical Structure of Senega-root „ 646 



CloS, D. — Partition of the Axis ,, 647 



Darwin, F. — Relation between the Bloom on Leaves and the Distribution 



of the Siomata „ 647 



WOOLLS, W. — Double Flowers „ 647' 



Meehan, T. — Superposed Stamens „ 648 



Planta, A. v. — Composition of the Pollen of the Pine „ 648 



Famintzin, a., & D. S. Pe2Ybytek — Composition of the Ash of the 



Pollen of Pinus sylcestris ,, 648 



Ltjndstrom, a. N. — Heterocarpous Fruits „ 648 



Pammel, L. H. — Testa of Leguminous Seeds v 649 



M'Nab, W. E. — Vegetable Metagenesis „ 649 



Wiesner, J. — Structure of the Cell-wall Part 5 818 



Belzuns, E. — Development of Starch in Plants germinating in the dark . . „ 819 



DuFOUR, J. — Soluble Starch „ 819 



MuNTZ, A. — Occurrence of the Elements of Milk-sugar in Plants .. .. „ 820 

 Hanausek, T. F., & R. Czermak — Beactions of three Bed Vegetable 



Pigments „ 820 



VuiLLEMiN, P. — Exoderm „ 820 



„ „ Pericycle of Caryophyllacese .. , „ 820 



Deer AY, F. — Fibrovascular Bundles of Piperacese „ 821 



Van Tieghem, P. — Fibrovascular Bundles and Secreting Apparatus of 



the Nymphseacese, „ 821 



Vuillemin, P. — Secreting System of Hydrocotyle „ 822 



PiROTTA, R., & F. Marcatili — Laticifcrous Vessels as Assimilating 



Organs „ 822 



Dudley, P. H. — D acts in Chestnut-wood , „ 822 



GiRAED, A. — Superficial extent of the Underground Parts of Planis .. „ 822 



JOHOW, F. — Non-chlorophyllaceous Saprophytes ,, 822 



Leclerc du Sablon — Fall of Branches of the White Poplar .. .. „ 823 



Trecul, a . — First Vessels in the Leaves of Crucifers „ 823 



CosTANTiN, J. — Structure of the Leaves of Water-lilies ,, 823 



DtCHAETEE, P. — Tendrils of Cucurbitacese „ 823 



PiCHi, P. — Glands of Bunias Erucago „ 823 



BoHM, J. — Turgidity of the Pith and Leaf „ 824 



