INDEX 



771 



Origanum oil, clearing agent, 141 

 Orr, degenerated nerve libres. 1080 

 osinic acid stain for nivclin, 1071 

 Orseille, 418 

 Orth, lorniol-Miiller, 118 



lithinm-carminc, 264 

 Orthoptera chromosomes, Carothcrs, 

 (J43 

 Alinonchi, (i4:5 

 embryological methods, 852 

 Heymons, 8.52 

 Morgan, 852 

 Patten, 852 

 Wheeler, 852 

 Orton, test for chitin, 1189 

 Osmic acid and acetic acid, 

 macerating medium, 508 

 and l)ichromate, 48 

 Altmann, 48 

 Baker and Thomas, 48 

 Hoehl, 48 

 lixation by solutions, 40 



by vapour of, 40 

 gold pre-impregnation. Viallane, 



406 

 and pyrogallol, 413 

 Hermann, 413 

 Lee, 413 

 treatment after fixation with, 40 

 mixtures, 42 

 Busch, 42 

 Nicolas, 42 

 Unna, 42 

 solution, strength of, 715 

 tannic acid methods for myelin, 



Azoulay, 1071 

 vapour for fixing protozoa, 1144 

 method, Cramer, 717 

 Osmication, shorter methods for 



Golgi apparatus, 712 

 Osmiophilic platelets, 1329 

 Osmio-sublimate mixture, Mann's, 76 

 Osmium chloride, Eisen, 84 

 tetroxide, estimation of, 41 

 method, Kopsch, 708 

 reaction, 41 

 Osseous or dental tissue, preparation 



and sectioning. White, 911 

 Osteoblastic activity, Shiplev and 

 Macklin, 923 

 centres, Hall, 924 

 Schultze, 924 

 Osterhout, soap for imbedding plant 



material, 1250 

 Otami, liver fixing and staining. 899 

 Ova, fixation of mammalian, 803 



treatment after fixation, 804 

 Ovaries plant, 1362 

 Ovens, 160 



Over-heated parafiin, 178 

 Overton, dehydration of plant tissue, 

 1240 

 fixation of plant cells, 1234 

 iodine vapour, fixation, 88 



Overton — contd. 

 osmic acid, 40 



washing out after chromic acid, 43 

 Oxalic acid, macerating medium, 576 

 Oxidation centres in ceil, 

 microchemical tests, 

 888 

 Shaw Dunn, 888 

 Graff, 888 

 Sato and Sekiga Tohoku, 



888 

 Schultze, 888 

 Oxycellulose, 1274 

 Ozawa, plant mitochondria, 1330 



Pacini's examination media, 453 

 Painter, aceto-carminc, 257 



chromosome preparation method, 



629 

 fixation of mammalian 



chromosomes, 628 

 oogonial divisions in Urosophila, 



636 

 temporary aceto-carmine 

 preparations, 641 

 Pal, modification of Golgi 's 

 bichromate-sublimate method, 

 1042 

 of Weigert's method, 1058 

 Paleobotany, 1414 et seq. 

 Palladium chloride, Frenkel, 32 



Schulze, 82 

 Paltant, intravital staining of plant 



material, 1323 

 Pancreas, islet tissue, 904 

 Benslev, 904 

 Bloom^ 904 

 Bowie, 904 

 Ho mans, 904 

 Lane, 904 

 staining, 903 • 



Pancreatic ducts, pyronin method, 



904 

 Pancreatin, Schiefferdecker, 583 

 Paneth cells, fixation and staining 



Klein, 897 

 Pannett and Compton saline, 780 

 Pappenheim, blood fixed films, 873 

 panoptic staining, 879 

 phenol solution, 72 

 pyronin, plasma stain, 320 

 Paracarmine, Mayer, 273 



as protozoan stain, 1147 

 Paraffin wax and collodion, double 

 imbedding. 196 

 method for plant material, 1244 

 overheated, 178 

 Johnston, 178 

 Spec, 178 

 Van Walsem, 178 

 pure, 177 



and ceresin, Higgs, 177 

 Kriebel, 177 

 Waddington, 177 



25—2 



