The American Monthly Microscopical Journal, Volume 13

Abbe condenser acid adjustment alcohol Algæ angle animal apochromatic apparatus appearance bacillus bacteria BACTERIOLOGY biological body cells cement cent centre cilia color concave concave lens condenser containing convex Coscinodiscus cover cover-glass crystals deposit desmids diameter diaphragm Diatomaceæ diatoms Difflugia examination exhibited eye-piece feet flagella flagellum focus forms fresh-water frustules genera genus glass glycerine Grun Heliozoa histology illumination illustrated immersion fluid inch Infusoria instrument interesting Journal large number lens lenses light matter method micro micrometer microscope Microscopical Society microscopists microtome minute mounted Navicula Nitzschia object obtained optical organs paper piece plane plants plate Pleurosigma potato preparations present Prof protoplasm Protozoa pseudopodia Radiolaria refractive index Rotifer salt Schizonema sections seen shell shown side skeleton slides solution species specimen spines sputum stage staining stand stem structure substage surface thin tion tissue tube vacuoles variety Vorticella