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Algoe. page 



Janse, J. M. — Plasmolysis of Algx 93 



Hauck, F. — Chwistocarpus tenellua 93 



Mobujs, M. — New Fresh-water Floridea 93 



Ketel, F. — Lemaiiea 93 



Wildeman, E. De— Microspora 94 



Smith, T. F. — Some points in Diatom-structure 94 



Castkacane, F. — Deep-sea Diatoms 94 



Grove, E., & G. Sturt— Fossil Marine Diatoms from New Zealand 94 



Wolle's (F.) ' Fresh-water Algse of the United States ' 94 



Xdchen.es. 



Forssell, K. B. J. — Glozolichenes 95 



Massee, G. — Gasterolichenes 95 



Muller, J. — Action of Lichens on Rocks 95 



Hegetschweiler & Stizenberger — Lichens on unusual substrata 96 



Fungi. 



Errera, L. — Accumulation and Consumption of Glycogen by Fungi 96 



Wettstein, K. v. — Function of Cystids 96 



Seynes, J. de — Rhizomorpha subcorticalis of Armillaria mellea .. 97 



Dietel, P. — Uredinese 97 



Prillieux, E. — Grape-disease — Comothyrium diplodiella 98 



Gasperini, G. — New Disease of Lemons 98 



Wahrlich, W.—New Pythium 98 



Zopf, W. — Chytridiacea parasitic on Diatoms 99 



Cohn's ' Cryptogamic Flora of Silesia ' 99 



Protophyta. 



Hy — Microchaste 99 



Weibel, E. — Vibrio from Nasal Mucus •• 99 



„ „ Two hinds of Vibrios found in decomposing Hay Infusion 100 



Katz, O. — Phosphorescent Bacteria from Sea-water 101 



Bary's (A. De) Lectures on Bacteria 102 



MICKOSCOPY. 

 o. Instruments, Accessories, &c. 



(1) Stands. 



Collins's (C.) Aquarium Microscope (Fig. 1) 103 



Golfarelli's (I.) Micrometric Microscope for Horologists (Fig. 2) 103 



Lenhossek's (J. v.) Polymicroscope (Figs. 3-6) 104 



Dufet's (H.) Polarizing Microscope (Figs. 7-9) 107 



Deboscq's Projection Microscope (Fig. 10) 108 



Campani's Compound Microscopes (Figs. 11 and 12) 109 



(3) Illuminating- and other Apparatus. 



Zeiss' (C.) Iris Diaphragm (Figs. 13-15) .. Ill 



Edmonds's (J.) Automatic Mica Stage (Fig. 16) Ill 



Bocsselet's (C.) Life-box (Fig. 17) .. 112 



Mayer, P. — Large form of Abbe Camera Lucida 113 



Hitchcock, B. — May 1 s Apparatus for Marking Objects 113 



Dewitz, H. — Simple Method of Warming and Cooling under the Microscope (Fig. 18) 114 



Graber, V. — Apparatus for determining Sensibility to Heat .. ., 114 



(4) Photomicrography. 



Israel (O.) & Stenglein's (M.) Photomicrographic Microscope (Figs. 19 and 20) 115 



Stegemann's (A.) Photomicrographic Camera (Fig. 21) 116 



Marktanner's (T.) Photo-micrographic Cameras (Figs. 22 and 23) 117 



Smith, G., Nelson's Photomicrographic Focusing Screen 119 



(5) Microscopical Optics and Manipulation. 



Exner, S. — Histological Structures and the Diffraction Theory (Figs. 24-33) .. 119 

 Yescovi, P. de — Method of Representing and Calculating the Magnification of 



Microscopic Objects in the projected images 135 



(6) Miscellaneous. 



Nelson, E. M. — Development of the Compound Microscope 136 



* Student's Handbook to the Microscope' 137 



