INDEX. 



585 



Nicolas, 32 



embedding in gelatin, 93 

 reptiles, 275 

 Nicolle, 168 



Nicotine, for narcotisation, 12 

 Nigrosin, 170, 182, 408 

 Nikiforow, 102 

 Nile blue, connective tissue, 354 



fat, 362, 368 



Nissl, 410, 411, 415, 450, 480 

 brain hardening, 403 

 bodies, 410 et seq. 



stains other than Nissl' s, 412 

 granules, nature of, 130 



methylen blue and erythrosin, 415 

 method, precautions against fading, 



413 



modifications, 413 

 Nitric acid, and acetic, for maceration, 



247 



bleacher, 257 



and chlorate of potash, for macera- 

 tion, 247 

 corrosion, 250 

 decalcification, 252, 253 

 for fixation, 38 

 fixative for neurofibrils, 417 

 formol, 64 

 maceration, 247 

 nerve tissue, 404 

 Noack, 83 



Noll, corrosion, 250 

 Nordmann, mast cells, 355 

 Nosema, 546 

 Nowak, sublimate formol, 63 



tactile corpuscles, 342 

 Nuclear stains, coal tar, 159 ft *cy. 

 Nuclease, 308 

 Nucleoli, Gatenby on, 308, 310 



malachite green for, 181 

 Nucleolini, 311 



Nucleus, '' vital " stains, 310 

 Nudibranchs, 502 

 Nuttall, Cooper and Robinson, 506 



Obersteiner, brain, 403 

 Obregia, 469 



method for paraffin and celloidin 



sections, 115, 119 

 Obst, nucleoli, 314 

 Octopus, 501 



Odenius, maceration, 247 

 Odier, Golgi method, 465 

 Oestergren, 13, 515, 517 

 Ohlmacher, 167 



alcoholic corrosive, 47 



tiuid, brain, 405 



formaldehyde process, 165 



myelin, 452 



picric acid, 176 

 Oils, 65 et seq. 



See also under definitive name, e.g., 

 Cedarwood. 



winter green, 27 1 



Okajima, elective stain for reds, 388 



fat, 368 

 Olmacher, 404 



Olt, manipulation of frozen sections, 109 

 Opalina, 533 

 Ophiothrix, 519 

 Ophiuridea, 519 

 Oppel, lattice fibres, 393 

 Oppenheim, neuroglia granules, 486 

 Oppitz, 201 



Orange G., 172, 173, 177 

 Orcein, 212 % 



embryonic cartilage, 376 



elastin, 353 



method, Unna, 351 



water blue, 340 

 Orchella, 211 

 Orcin, 212 



Organic acids, fixation by, 51 

 Orientation methods, 273 el so/. 



for blastoderms, 273 



in embedding, 80 et seq. 

 Origanum oil, 68 



for celloidin sections, 102 

 Orr, 451 



Marchi method, 450 

 Orth's fluid, 260 

 Orthoptera eggs, 286 

 Orton, 503, 508 

 Osmacet, 380 

 Osmium chloride, 50 

 'Osmium tetroxide, reduction, 29, 32, 124 



acetic acid maceration, 246 

 bleaching, 31 



restoration of staining, 31 

 for blood, 380 



gold method (Viallane), 205 

 Kopsch method, 327 

 nerve tissue, 404 

 and fat, 356 et seq. 

 and picric, 56 



pyrogallol method, 208 



regeneration of, 30 

 fixation by vapour, 30 

 after-treatment, 30 



sublimate, 48 



vapour method, Cramer, 330 

 Ossifying cartilage, 254, 377 

 Osteoblastic areas, 378 

 Ostracoda, 505 

 Wo. Ostwald, 125 

 Ova, of Echinoderms, fixation, 260 



fixation of mammalian, 265 



frog's, 275 et seq. 



Insecta, Pisces, 259 



treatment of uterine eggs of mam- 

 mals, 266 



Ovary as index to pregnancy, 263 

 Ovens, paraffin, 79 

 Overhardened tissue, rejuvenation of, 



462 

 Overton, 31, 34 



iodine vapour, 51 

 Oviatt and Sargent, 233 



