514 



INDEX. 



The numbers refer to the pages. 



Optical difeerentiation, 20, 22, 37 



Orange Q-, 184,^87, 189 



Orcein, Israel's method, 229 ; Unna's, 

 345, 347 



Orcein-Wasserblau mixture, 334 



Orohella, 229 



Orientation, in paraffin, 86, 87 ; in 

 oelloidin, 106 ; of blocks, 88 ; of 

 ova, 297 



Origanum oil, 71 



Oke, Marchi's nei've-stain, 415, 417 



Orseille, 229 



Obth, " Formol-Miiller," 66, 380; 

 lithium carmine, 147 



Orthoptera, embryology, 611 



Osmicacid, generalities, 28, 31 ; how 

 to keep, 28 ; regeneration of, 29 ; 

 fixation with, 29; after-treat- 

 ment, 30 ; characters of the fixa- 

 tion, 31 ; blackening of fat, 352 ; 

 mixtures, 31, 35 et seg. ; sub- 

 limate mixtures, 50 ; picric 

 mixtures, 59 ; stains with pyro- 

 gallol, pyroligneous acid or tan- 

 nin, 226 ; for hardening, 381 ; 

 stains for meduUated nerve, 416, 

 417 ; for maceration, 273 



Osmic-bichromic mixtvires, 37, 38 



Osmio-sublimate mixtures, 50 



Osmium hfematoxylin, 168 



Osmium, see Osmic acid. 



Osmium-carmine, 466 



Osmium chloride, 52 



Osmosis, to avoid, 3 



OsTEKGBEN, ether-watcr, 15 ; Nemer- 

 tians, 464 ; Dendrocoelum, 467 ; 

 Si/napta, 467 



Ostracoda, 454 



Otocyst of Mysis, 456 



Ova, see Embryological methods. 



Ovens, 85 



OvEETON, bleaching, 30, 33; fixing 

 with iodine, 53 ; fixing Algee, 44 



OviATT and Sabgent, injecting, 258 



Oxalic acid, for maceration, 275 

 Oxychloride of ruthenium, 227 

 Oxygenated water, for narcotisation, 

 18 ; for bleaching, 30, 285 



P. 



Pacaut, picro- sublimate, 50 



Pacini, preservative liquids, 239 



Pal, nerve-stain, 411 ; Golgi's subli- 

 mate method, 433 



Paladino, nerve-stain, 418 



Palladium chloride, for fixing, 52 ; 

 staining, 227, 418 ; decalcifying, 

 280 



Palladium chloride, 52, 227, 280, 

 418 



Pancreas, 370 



Panoreatin digestion fluid, 276. 277 



Paneth, goblet-cells, 369 



Panoptic stain, 363 



Pansch, starch injection, 268 



Paper cell mounting method, 250 



Paper trays and thimbles, 77, 78 



Papillte foliatae, 335 



Pappenheim, plasma cells, 349, 351 ; 

 panoptic stain, 363 ; blood-plates, 

 367 ; chemistry of staining, 129 ; 

 neutral dyes, 132 ; methyl green 

 and pyronin, 183, 350 ; haemo- 

 poietic tissues, 366; sublimate 

 fixative, 48 



Paraearmine, 149 



Paraffin, for preserving material, 5 ; 

 solvents of, 81, 82 ; imbedding 

 in, 81 — 87, orienting in, 86 ; out- 

 ting, 88— 96; ribbons, 96; coat- 

 ing blocks of, 97 ; electrification 

 of, 97 ; masses recommended, 98 ; 

 mounting sections, 98; ascertain- 

 ment of melting point, 99 ; over- 

 heated, 99 ; cement, 250, 252 



Paraffinum liquidum, 235 



Paeavicini, neurofibrils, 402 



Paris violet, 172 



Paekee, dehydration, 4 ; methyleu 



blue, 208; turpentine cement, 



252 ; bleaching, 286 ; eyes of 



Arthropods, 457 



Paekek and Floyd, formol for 



brain, 377 

 Parma blue, 195 

 Parolein, 248 

 Parthenogenesis, 287 



