500 



INDEX. 



The numbers refer to the Paragraphs, not to the Pages. 



O. 



OBEBSTEINEB, central nervous system, 

 728; hardening, 731; staining, 

 745, 750. 



OBBEGIA, Golgi's silver chromate me- 

 thod, 711 ; serial section method, 

 868. 



Oceania, 851. 



Octopus, eyes, 816. 



ODENIUS, tactile hairs, 546. 



OGATA, hardening brain, 732. 



OHLMACHEE, reactions of saf ranin with 

 iodine and picric acid (pseudo- 

 carcinoma corpuscles), 101 ; sec- 

 tion fixing process, 869. 



Oil, of aniseed, imbedding mass, 322 ; 

 of bergamot, 347; cannel, 346; 

 cedar wood, 344; cloves, 4, 343, 

 345; origanum, 305; sandal- 

 wood, 349 ; turpentine, 343 ; and 

 see Clearing agents. 



Olfactive organs of Vertebrates, 655. 



Ommatostrephes, eyes, 816. 



One-third alcohol, 63, 525, 862. 



Onuphis, 841. 



Opalina, 858. 



Opheliadae, 841. 



Ophiuridea, 847. 



OPPEL, liver, 810. 



Opisthobranchiata, 813. 



Opisthotrema, 833. 



OPPITZ, silver staining, 214. 



Optic nerve, 741. 



Orange, 95, 98, 107, 258, 259. 



Orcem, 207, 795. 



Orchella, 206. 



Orchestia, embryology, 626. 



Origanum oil, 305, 348. 



Orseille, 206. 



Orseillin, 95, 107. 



OETH, methyl violet, 111; lithium- 

 carmine, 166; picro-lithium car- 

 mine, 240. 



OSBOEN, embryology of Triton, 600; 

 brain of Urodela, 743, 784 ; serial 

 sections, 778. 



Osmic acid, for fixing, 21, 23, 25 29 ; 

 for hardening, 73, 732, 740, 741 ; 

 for macerating, 541, 542 ; for im- 



pregnation, 233; blackening of 

 preparations with, 29, 36, 575; 

 how to keep solutions, 25, 26, 28, 

 35, 36; COEI'S solution, 26; Ko- 

 LOSSOW'S solution, 28 ; osmic acid 

 and alcohol, 28; and chromic 

 acid mixture, 34, 73 ; and chromic 

 and acetic acid mixture, 35, 36; 

 and iodine mixture, 645; acetic 

 acid mixture, 28, 542 ; osmic and 

 oxalic stain, 233 ; osmic and pyro- 

 gallic ditto, 233, 639. 



Osmium-blackened fat, 36, 787. 



Osmium-carmine, 167. 



Osmosis, to avoid, 4, 358. 



Ostracoda, 822. 



Ova, pelagic, 83, 610. 



OVEBTON, bleaching osmic objects, 29 ; 

 fixing with iodine vapours, 66. 



OVIATT, injection method, 500. 



Ovum, maturation of, 644; and see 

 Cytological methods. 



Ovum of Ascaris, 54, 644 ; other ova, 

 see Embryology. 



OWEN, preservative liquid, 383. 



Oxalic acid for maceration, 547. 



Oxygenated water, 29, 30, 580. 



OYABZUN, Golgi's silver chromate im- 

 pregnation, 716. 



P. 



PACINI, preservative liquids, 380. 

 PAGENSTECHEB, fixing fluid, 45. 

 PAL, hsematoxylin stain, 692 ; staining 



nervous centres, 760. 

 PALADINO, iodide of palladium nerve 



stain, 727. 

 Palinurus, ova, 58. 

 Palladium chloride, 52, 84, 234, 559, 



746, 767. 



Palladium iodide nerve stain, 727. 

 Palythoa, 849. 



Pancreatin digestion fluids, 553. 

 PANETH, making Weigert's hEema- 



toxylin, 688 ; goblet-cells, 809. 

 PANSCH, injection-mass, 518. 

 Paper, imbedding trays, to make, 273 ; 



paper cells, 432. 

 Papilla? foliatse, 654. 



