( 6 ) 



Muscinese. img« 



Vaizet, J. R. — Absorption of Water and its Relation to the Constitution of the Cell- 

 wall in Mosses 2G3 



Philibert — Peristome of Mosses 263 



Sanio, C. — Hybrid Mosses 264 



Massalongo, C— Distribution of Hepaticie 264 



Algse. 



Schl'tt, F. — Phycophxin .. .. 265 



Debray, F. — Development of the Thallus of certain Algoe .. 265 



Oliver, F. W. — Sieve-tubes in the Laminariem 265 



Lagerheim, G. — Development of Confervacess 266 



Hansgirg, A. — Algological Studies 267 



Rauwenhoff, N. W. P. — Sphxroplea 267 



Wildeman, E. de — Ulothrix crenulata 268 



Potter, M. 0. — Alga epiphytic on a Tortoise 268 



Schutt, F. — Formation of Auxospores in Diatoms 268 



Fungi. 



Frank, B. — New Forms of Mycorhiza 268 



Wettsteln, R. von — Abnormal Fructification of Agarious procerus 269 



Morini, F. — Sexuality of Ustilaginese 269 



„ „ Germination of the Spores in Ustilago 270 



Tieghem, P. Van — New Genera of Ascomycetes, Oleina and Podocapsa .. .. 271 



Zckal, H. — Asci of Penicillium crustaceum 271 



Rothert, W. — Formation of Sporangia and Spores in the Saprolegniex 271 



Schnetzler, J. B. — Infection of a Frog-tadpole by Saprolegnia ferax . . . » . . 272 



Reess, M., & 0. Fisch — Elaphomyces 273 



Brunchorst, J. — Cabbage- Hernia 273 



„ „ Potato Fungus , 274 



Robinson, B. L. — Taphrina 274 



Vuillemin, P. — Disease affecting Cherry and Plum-trees 274 



Harz, C. O. — Oidium Fragarim 274 



Rostrtjp, E.— Fungi of Finland 275 



Protophyta. 



Scott, D. H. — Nucleus in Oscillaria and Tolypothrix 275 



Borzi, A. — Microchsete 275 



Billet, A. — Life-history and Morphological Variations of Bacterium Laminarise 275 



Tomaschek, A., & A. Hansgirg — Bacillus muralis 276 



Bujwid, O. — Bacteria in Hailstones 277 



Fischer, B. — Phosphorescent Bacillus 277 



Kitasato, S. — Spirillum concentricum, anew species from decomposing blood .. 278 



MICEOSCOPY. 



o. Instruments, Accessories, &c. 



(1) Stands. 



Williams, G. H. — Bausch and Lomb Optical Co.'s Petrographical Microscope 



(Fig. 40) 279 



Czapsej, S. — Bamberg' 's Spherometer Microscope (Fig. 41) 280 



Galland-Mason's (R.) Microphotoscope (Figs. 42-44) 281 



(S) Eye-pieces and Objectives. 



Gundlach, S. — Apochromatic Objectives 285 



Cheap Objectives 287 



(3) Illuminating: and other Apparatus. 



Brefeld, O. — Geissler's Culture Tubes (Fig. 45) 287 



Gas and Moist Chambers (Figs. 46-55) 287 



Mallard, TS,.—Bertrand's Befractometer 291 



Lehmann, O. — Apparatus for Microphysical Investigations 292 



