Index 



237 



Metagelatin, 90, 



Metallic substances for color differentia- 

 tion, 20, 71. 

 Methods, general statement of, 15. 



Methylen blue, 20, 179; for bacteria, 107, 109; 

 for impregnation of epithelia, 183; for 

 nerves and nerve-terminations, 180, 181; 

 for non-striated muscle, 182 ; for ordinary 

 sections, 182; immersion method, 181; in- 

 tra vitam stain, 180; LoefBer's alkaline, 

 109 ; polychromatic, 180. 



Methyl green, 20, 76, 168. 183, 187 ; formula, 

 183. 



Methyl violet, 20,57; formula, 183. 



Metric weights and measures, 227. 



Micrococci, 108. 



Micrococcus tetragenus, 111. 



Micrometer, stage, 153; ocular, 155; filar, 

 155. 



Micrometry, 153-55. 



Micron, 44,155. 



Microscope, 133; simple, 136; C9mpound, 137, 

 139, 140; makers, 141-44; binocular, 146; 

 dissecting, 4, 149; manipulation of, 157. 



Microscopical terms and appliances, 145. 



Microtome, well, 35; for paraffin, 39,40,60; 

 Minot, 39; Minot-Blake, 40; oil for, 44; 

 celloidin, 60; freezing, 67, 68. 



Microtome knife, tilt of, 40; sharpening, 44. 



Milk, 213. 



Milky looking mounts, 57. 



Minot, 116, 121, 174; microtome, 39, 40. 



Minute dissection, 77, 78. 



Mirror, 155. 



Mites, 88. 



Mitosis, 165, 171, 192, 193; heterotypical, 192. 



Mollusk, 225. 



Monieza, 220. 



Monocystis, 216. 



Moth, wings of, 92. 



Mounting, 22. 



Mouse, embryology of, 121, 122. 



Mouth, epithelium of, 198. 



Mucin, 172, 199. 



Mucoid connective tissue, 197. 



Muller's fluid, 70, 163, 188, 189; formula, 163. 



Muscae volitantes, 155. 



Muscle, 172, 176, 204; cardiac, 75, 187, 188, 204; 

 to tendon, 205; smooth, 187; voluntary, 75; 

 of insect, 90. 



Muscle fiber, branched-striated, 204; non- 

 striated, 182, 205 ; striated, 75, 201; fibrillae 

 of, 205; end of striated, 205; cardiac, 75. 



Mussel, gills of, 225 ; cross-section of, 225. 

 Myelin, 207. 



Nail, 213. 



Naphthylamin yellow, 190. 



"Neck length" of embryos, 116. 



Needle, 1. 



Negative eyepiece, 137. 



Neisser, method of diagnosis of diphtheria, 



169. 

 Nematocysts, 218, 219. 



Nerve, 73; endings, 74, 177, 180; tissue, 162, 

 163, 176, 180, 186; degenerated fibers,, 179, 

 207; plexuses in alimentary canal, 199; in- 

 tra epithelial fibers, i07 ; medullated fibers, 

 207, 208; non-medullated fibers, 208; fiber 

 bundles, 208. 



Nerve cells and their ramifications, 71, 120, 

 187. 



Nerve cells, Nissl's method for, 162, 182. 



Nervous system, of grasshopper, 77 ; of ver- 

 tebrates, 206. 



Neurokeratin, 208. 



Neuroglia, 73, 208. 



Neutral red, 183. 



Neutrophil granules, 175, 191. 



Nitric acid, 9, 79, 189; see also mercuro- 

 nitric fluid. 



Nissl, method for nerve cells, 162. 182 1 : gran- 

 ules, 182, 183, 208, 



Nodes of Ranvier, 208. 



Nomenclature of objectives and oculars, 144. 



Normal or indifferent fluids, 125, 187. 



Normal saline, 8, 187. 



Nose, 209; mucous membrane of, 209. 



Nosepiece, 139, 158. 



Numerical aperture, 155. 



Objects which will not stain, 56. 



Objects which alcohol would injure, section- 

 ing, 70. 



Objects of general interest, mounting, 87. 



Objective, 137, 138; immersion, 152, 159; apo- 

 chromatic, 146; using high power, 158. 



Oblique illumination, 150. 



Ocular, 137; compensating, 145, 148; search- 

 ing, 148; working, 148. 



Odontoblasts, 201. 



Oil, anilin,22; of bergamot, 22; cedar-wood, 



21, 43, 48, 62 ; of cloves, 22, 78 ; of origanum, 



22, 62; of sandal- wood, 22; of thyme and 

 castor oil, 62. 



Oil immersion lens, 152, 159. 

 Olfactory cells, 209; nerve processes of , 209. 

 Opalina, 216. 

 Opaque mounts, 92. 

 Opaque objects, 150. 

 Optical center of lens, 134. 

 Optical principles, 133. 

 Orange G, 20, 183. 

 Orcein, 184. 



Organs and tissues with methods of prepara- 

 tion, 190. 

 Orientation, 38. 

 Orienting chick embryos, 113. 



Orienting objects in the imbedding mass, 

 124; Patton's method, 125 ; Eyclcshymer's 

 methods, 125. 



Orienting serial sections, 124. 



Orth's lithium carmine, 107. 



Osmic acid, 18, 78, 79, 116, 120, 167, 168, 183, 

 185; discussion of, 167 ; vapor, 168. 



Osmic material, bleaching, 45. 

 Osmium-bichromate mixture, 72. 

 Otoliths, 201. 



