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Biffen, R. H . — Biology of Agaricus velutipes 421 
Zacharias, O . — A Plankton-Fungus . . .. .. 422 
Harris, W. H . — Marine Microscopic Vegetable Organisms 422 
Lachner-Sandoval, Y . — Ray Fungi '. 422 
Chevalier, J., & Bra — Parasitic Fungus in Cancer 422 
Bodin, E . — Oospora Form ( Streptothrix ) of the Microsporum of the Horse . . . . 423 
Myxomycetes. 
Lippert, C . — Biology of the Myxomycetes 423 
Protophyta. 
a. Schizophycae. 
Kirchner, O. — Classification of the Schizophycese 423 
J3. Schizomycetes. 
Jennings, A. Y . — New Genus of Bacteria 424 
Migula, W . — Decline and Regeneration of Spore-formation in Bacteria . . . . ... 424 
Almqvist — Method for Determining the Specific Gravity of Bacteria 424 
Hugotjnenq, L., & Doyon — Chemical Action of Pathogenic Micro-organisms . . . . 425 
Beijerinck, W . — Necessity of Free Oxygen to Essential Anaerobes ? 425 
Gain, E . — Influence of Soil Microbes on Vegetation 426 
Houston, A. C . — Chemical and Bacteriologicnl Examination of Soils 426 
Ward, H. W., & J. R. Green — Sugar Bacterium 426 
Ward, H. M. — Thames Bacteria . . . . 427 
Smith, Th . — Thermal Death-point of Tubercle Bacilli 427 
Hiltner — Organism of the Root-tubercles of the Alder . . . . 427 
Iwanowski, D., & W. Beijerinck — Mosaic Disease of the Tobacco Plant . . . . 428 
Korn, O . — New Acid-resisting Bacillus . . 428 
MacCallum, W. G., & T. W. Hastings — Peptonising Diplococcus 429 
Simonj, A. De — Presence of Frisch's Bacillus in the Nasal Mucosa 429 
Klein, E . — Bacillus enteritidis sporogenes 429 
Klein & M. Gordon — Streptococcus Scarlatina 430 
Muhlschlegel — Bacilli granulosi . . . . 430 
Martin, S . — Growth of the Typhoid Bacillus in Soil 431 
Jess — Bacillus of Distemper ( Febris catarrhalis epizootica canum) 431 
MICROSCOPY. 
A. Instruments, Accessories, &c. 
Cl) Stands. 
Reichert’s New Polarising Microscope (Fig. 97) 432 
„ “ Austria ” Microscope (Fig. 98) 432 
„ New Pocket Microscope (Fig. 99) 432 
„ Polarising Hand Microscope (Fig. 100) 432 
Leitz — Eternod's New Large Model Mechanical Stage (Fig. 101) 434 
Eternod — Adaptation of Greenough’s Binocular to the Ordinary Microscope .. 435 
Reichert’s New Coarse Adjustment (Fig. 102) 435 
C2j Eye-pieces and Objectives. 
Ross, Andrew — Primitive Form of Lens-correction (Fig. 103) 436 
Keeley, F. J . — Effect of Cover-glass Thickness on the Performance of Wide Aperture 
Dry Objectives 437 
Collins, F. Howard — Nomenclature of Objectives 437 
Bibliography 438 
(3) Illuminating- and other Apparatus. 
Reichert’s Electrically Heated Stage (Figs. 104 and 105) 438 
Watson’s Dust-proof Triple Nose-piece (Fig. 106) . . 440 
„ Table-Stage (Fig. 107) 440 
(4) Photomicrography. 
Bitting’s Photomicrographic Apparatus (Fig. 108) 440 
(5) Microscopical Optics and Manipulation. 
Bibliography 441 
