( 4 ) 



Ts^cniRcn, A.— Starch metU '2<>5 



Leblois, A. — Function of Latex in the Compont/e '2.66 



Ghosouk, S. — Influence of Liyht on Oie Development of the AsdmiltUing Tissue of 



Jjeaves 266 



Van TiEGUEM, P. — Corliml Fihrovasmlar Bundles of Vicieie 266 



ScHENCK, W.— Formation of Ccnlrifiujnl Thichenimjs in the Walls of Hairs and in 



the Epidermis 207 



MoBirs, K. — Mei-hanical Sheathn to Secretion receptacles 267 



Van TiEGHEJi, P. — Curvature of Ovules 267 



Meehan, T. — Sexual Characters in Zinnia 267 



,, „ — Elaj<ticity in the Filaments of Ilelianthus 2(;8 



(tIIAT, A. — Mot^ementit of Andraecium in Sunflowers 2i<8 



ScnuENK, J. — ITattstoria of Parasitic Phaiierogams 2i'.8 



'!il\\R, H.— Organs of Secretion in Pines and Larches 26!) 



Macfari.ane, J. M. — Distribution of Honey-Glands in Pitchered Insectivorous 



Plants 269 



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



fi- PhysiologTT. 



KvuTTscnNiTT. J., & BiiiTTON, N. l^.^Fecundation of Ovules in Angiosperms .. 270 



Tkelb, M. — Embryo of Ci/cadem 270 



„ „ — Embryo of Barringtonia 27 1 



U^hnK^/F.— Fertility of Hybrids 271 



JoitissEN, A. — Germination of Flax and Siceet Almond 271 



RuLF, P. — Behaviotir of Tannin in Germination 272 



WettsTein, R. V. — Laws of Growth of Vegetable Organs: Boots 272 



WiESNEi!, J. — Motions of Roots during Growth 272 



Fkaser, A. T. — Autumnal Foliage 272 



Bonnier, G., & Mangin, L. — Respiration of Germinating Seeds 272 



DcPOUR, J. — Lifluence of Gravitation fm the Movements of Stamens 272 



IMer, E. — Nyctitropic Movements of Leaves .. .. 273 



"Wiesner, J. — Mechanical Explanation of Spontaneous Nutaiions 273 



WouTitANN^, J. — Secondary Geolropic Phenomena 273 



l^hFvi^a, F.~ Ascent of Water in Plants 274 



Emerling. — ■ Form' ition of Albumen in Green Plants 274 



DiyrMER, W. — Formation of Hydrochloric Arid in Plants 274 



La WES, J. B. — Sotirce of the Nitrogen in Plantt 275 



Berthelot & Andre. — Formation of Nitrates in Plants 275 



JoRissEN, A. — Reducing Properties of Seeds and Formation of Diristase 276 



Cabnol, a. — Composition of Mineral Oil in relation to the Plants which have pro- 

 duced it 276 



B. CRYPTOGAMia.. 



Cryptogamia Vascularia. 



Leclekc DU Sabi.on, M. — Dehiscence of tlie Sporangia in Vascidar Cryptogams .. 276 

 ILlein, L. — Development of Organs and Growth at tlie Growing Point of Dorsi- 



ventral Ferns , 276 



Tkeub, M. — ProthalUum of Lycopodium 277 



Franuuet, A. — South American Isoetes .. 279 



Brvchmann, H. — Development of tlie Vegetative Organs of Selagindla spinvlosa .. 279 



Muscinese. 



Ht, L'Abb^. — Archegonium and Sporogonium of Muscineae 279 



Breidleh, J., & Beck, G. — Trochobryum, a new gemts of Seligeriaceie 281 



Ba-LAY, M. — Musses of France 281 



Warnstoff, C. — European Sphagnacem 281 



Stephani, F.— iJuJuZa 282 



Algse. 



Hansen, A., & TscHiRCH, A.— CWorop/tJ/'i 0/ Fwcaceaj 282 



Marcbesetti, C. Di — Neio Instance of Symbiosis 282 



Scha^\.rschmidt, G. — Vegetative Changes of Form in Chlorosporese 283 



Will, H. — Anatomy of Macrooystis 284 



ScHAARSCHMiDT, G. — Hibernation of Zygnemacese 284 



15ATES, F, — Sexuality in the Zygnemacex 285 



Rosenvinge, L. K. — Parthenogenesis in Spirogyra 285 



WoLLNEY, B. — Geminella interrupta 285 



Flahault, C. — Lithoderma fontanum, a New Fresh-water Phxospore 285 



Dlekee, R. P. H. — Structure of the Diatom Valve 286 



AVallich, G. C. — Structure of IHatoms 286 



Lagerstedt, N. G. W. — LagerstedVs Diatom-synonymy 287 



Macadam, W. T. — Diatomaceous Deposits in Scotland 287 



