194 



THE MICROSCOPE. 



Eggs of insects, mounting, 44 

 Equisetum, cuticle, 15S 

 Erysiphe, mounting perithecia, 126 

 Eyes, care of, 13, 130 

 Eyepieces, 41 

 dust on, 1 



Earrant's solution, 72, 94, 96 

 Eern protkallia, sections, 267 

 Fibrin, staining, 15 

 Elagella, 173 



Elea, pygidium, mount, 79,94 

 Flies and the cholera, 93, 184 

 Flowers mounted entire, 28 

 Food supply, microscopic, 117 



Glandular hairs, 179 

 Glass, boring holes, 95 

 Gold crystals, 143 

 Grape mould, 172 

 Gum thus, 64 

 Gwa mixture, 174 



Haematoxylin, Ehrlich's ammo- 

 niated, 63 

 solution which keeps, 164 

 Hairs, tactile, 15 

 Heliomicroscopy, 186 



Ice cream poison, 14 



Ice, bacteria, 40 



Illumination, proper, 13, 131 

 for photomicrography, 89 

 for photography, 74 

 monochromatic, 78 

 of opaque objects, 62 

 with Abbe condenser, 140 

 with Incandescent lamp, 180 



Imbedding in celluloidin, 108 



Insects, small, imbedding, 44 

 eggs, markings, 44 



Instruments, see Microscopes. 



Invertebrata, methylene-blue for 

 nervous system, 35 



Knife, how to open a rusty, 122 

 to sharpen, 138 



Leaves mounted entire, 28 



impressions preserved, 34 

 Ledge and clips, 105 

 Libby Prison War Museum, 107 

 Eight, see Illumination, 

 Lord's prayer, micro-written, 44 



Magnification of a microphoto- 



graph, 63 

 Magniiying power measured, 46 

 Medium, Deane's, 174 

 Farraut's, 72, 94, 96 



Medium, soft, for mounts 63 

 Meningitis, staining the brain, 158 

 Methylated spirits, 77 

 Methylen-blue for invertebrata, 35 

 Microbes on mail matter, 186 

 Microphotographs, 78, 79 

 Microphotography, 74 

 Microscope, Acme $5, 103 



appearances under, 1 



and the physical history of the 

 earth, 85 



B&L. Library, 66 



Beck's Star, 83 



care of, 13, 92 



directions for using, 183 



Divini's, 48 



duty on, 45, 72 



for "beginner, 30, 34, 49, 65, 76 



how to buy, 76 



how to observe, 130 



home-made apparatus, 25 



injuries, 13 



in pharmacy, 27, 61 



prize for original work, 90, 93 



Watson's, 169 



Zentmayer's American, 51 

 Microscopical Societies, model for 

 constitution, 69, 133 



Societies American, 123,146 



Societies in Indiana, 81 



Societies, list, 9, 10, 33, 119 



Society, Manchester, 113 

 Microscopy, beginner in, 30 



growth of, 97 



in public schools, 39 



mathematics, 13 

 Microtome, freezing, oil of anise- 

 seed, 35 



knives, sharpening, 33 

 Milk and bacteria , 173, 185 

 Milkweed, pollinia, 142 

 Minerals, cutting, 86, 106 

 Mordant in bacteriology, 170 

 Mosses, study of, 185 



mounting, 187 

 Mosquitos, to exterminate, 170 

 Mounting outfit, 66 



Neutral tint reflector, 92, in 

 Numerical aperture, 124 



Objectives with correction colar, 



47, 127, 171 

 dust on, 2 



homogeneous and oil, 171, 187 

 numerical aperture, 124 

 the most powerful, 186 

 Observe, how to, 130 



