( 4 ) 



Recobd of Ccbrent Reskarohes, &c. — continued. 



PAGE 



Neto Vegetable Structures from Coal and Anthracite 8;<6 



Classification of Bacteriacem 8S7 



Atmospheric Bacteria 837 



Modification of the Properties of Bacillus anthracis by Cultivatioti .. .. 838 

 Bacterium foetidum : an Organism associated with profuse Siceating from 



the Soles of the Feet 839 



Alcoholic Fermentation 841 



Clastoderma 8il 



Monograph of Arthonia .. .. 841 



Algal Vegetation of the Siberian Sea-coast 842 



Algse of the Utah Salt Lake 843 



Antherozoids of Hildebratidtia rivularis 8l3 



New Vaucheria 844 



Parasitic Nostoc 845 



Movement of the Cell-c(yntents of Closterium lunula 845 



Eiidochrome of Diatomacess 84G 



MiCEOSCOpy, &c. 



Microscopical Analysis of Water 847 



Brownian Movement 849 



Examining very soft BocJis .. 849 



Lenses for Petrographioal Worh (Figs. 75 and 7G) 850 



Process for Microscopical Study of very minute Crystalline Grains .. .. 851 



Br. Matlhews's Machine for Cutting Hard Sections (Figs. 77-79) . . . . 852 



Bleaching and WasJting Sections (Fii^a. 80 &ud 81) 853 



Wicliersheimer's Preservative Liquid 855 



Preserving the Colours of Tissues 856 



Staiyiing- fluid for Amyloid Substance 857 



Carbolic Acid for Mounting] 858 



WaxCelh 860 



Dry " Mounts " for the Microscope — Wax ami Gutta-percha Cells .. .. 8'Jl 



Covering Fluid Mounts 864 



Thickness of Cover-glasses 866 



Finishing Slides 866 



Novel Form of Lens 867 



Swift's Radial Traversing Sabstagc IllumirMtor (FifiB, 82 and 8S) .. .. 867 



Soimes's'^ Isophotal" Binocular Microscope (Fig3.8i-87) 870 



NacheVs Microscope loith Rotaiing Foot 873 



Edmunds's Parabolized Gas Slide and Nachet's Gas Chamber .. .. .. 873 



Advantages of the Binocular Microscope 874 



Reduction of Angle of Aperture tcith the Binocular (F'lga. 88-dl) ., .. 874 



Apertures exceeding ISO"^ in Air (Figs. d2-di) 875 



Diameter of Microscope-tubes 877 



Wythe's Amplifiers .. 877 



Foreign Mechanical Stages {F'lgs. 95 and dG) 878 



''Fine" Adjudmenls (Figs. 91 and 98) 882 



Seibert and Kraft's Fine Adjustmeid (Figs. 90-101) 883 



Construction of Immersion Objectives (Fig. 102) 884 



Mountiiig of the Front Lens of Immersion Objectives 8S4 



Penetration 886 



Tolles's Improved Traverse-lens, Illuminating and Aperture-measuring 



Apparatus (Fig. 103) 887 



Semi-cylinder Illuminator (Fig. 101:) 889 



Tlie Iris Diaphragm an Old Invention 890 



Microscopical Goniometer 890 



Pleurosigma angulatum as a Test Object 890 



FasoWs Test Plate 891 



Giiidher's Photographs of Pleurosigma angulatum 891 



New Microscopical Journal 892 



BlBIJOGBAPHY .. .. .. .. .. •• •• •• 893 



