( 6 ) 
rA*E 
Chester, F. D . — New Parasitic Fungi on Crops 242 
Nylander — Schwendener’s Lichen-theory 242 
Bornet, E . — Ostracoblabe implexa 242 
Hansen, E. C. — Pasteur’s Pure Yeast 243 
Lagerheim, G.von — New Genera of Uredinex 243 
Boyer, G . — Disease of the Olive 244 
Galloway, B. T . — Coleosporium Pint sp. n 244 
Prilliecx, E . — Penetration of the violet Rhizoctone into the Beetroot and Lucerne 244 
Blanchard, R . — Fungus parasites on Animals 244 
Gruber, M . — Micromyces Hojfmanni 244 
Costantin, J . — Cultivation of Basidiomycetes 245 
Bourquelot, E . — Saccharine Matters in Boletus edulis 245 
Frotophyta. 
a. Schizophyceae. 
Schilberszky, K . — Movements of Diatoms 245 
Toni, De — Sylloge Algarum ( Bacillarieie ) 245 
Deby, J . — Campylodiscus 245 
Tempere, J . — New Genus of Fossil Diatoms 246 
/9. Schizomycetes. 
Zettnow, E . — Structure of Bacteria 246 
Straus, J . — Morphology of the Bacterial Cell 247 
Sjobring, Nils — Nuclei and Division of Bacteria 247 
Frexzel, J . — Nucleus in Bacteria 248 
"VVager, H . — Nuclear Structure in Bacteria 248 
Capparelli, A . — Phagocytosis 248 
Sormani — AEtiology, Pathogenesis, and Treatment of Tetanus 249 
Crookshank, E. M . — Streptococcus pyogenes 250 
Fasching, M . — Bacillus capsulatus mucosus, a new Capsule Bacillus 250 
Okada, K . — Bacillus rubellus 251 
Popoff, M . — Anaerobic Bacillus of Panic Fermentation 251 
Kramer, E . — Potato Disease and its Cause 251 
Charrin & Roger — Experimental Angiocholitis 252 
Ogata — Claim of priority on a point in connection with the Immunity question .. 252 
Bibliography 252 
MICKOSCOPY. 
a. Instruments, Accessories, &c. 
(2) Eye-pieces and Objectives. 
Burrill, T. J. — Microscope Objectives 255 
Spencer, H. R. — Fluor-spar Objectives 200 
Stokes, A. C. — Fluids for Immersion Lenses 261 
(3) Illuminating’ and other Apparatus. 
Bernhard, W. — A new Modification of the Abbe Drawing Apparatus 263 
Henking, H. — While el's new Drawing Apparatus 264 
Gaertner, F.- — The Grapho-Prism and its Use (Figs. 29 and 30) 264 
Bernard, H. — A new Mechanical Stage (Figs. 31 and 32) 267 
(4) Photomicrography. 
Pringle, A. — Photomicrography 269 
Francotte, P. — Focusing in Photomicrography 270 
Van Heurck’s Vertical Camera for Photomicrography (Fig. 33) 271 
(5) Microscopical Optics and Manipulation. 
Jameson, IT. G . — Microscope Tube-length and Resolving Power 272 
Castellarnau, D. Joaquin Ma. de — Optical Theory of the Microscope. The Virtual 
Image 273 
