INDEX 



7G5 



Picric Sicid— (continued) 



technique for decalcification with, 335 

 Picro-carmines, 303-304 



recommendation for use, 293, 294 

 Pietschmann's fixative, 208, 250 

 Pigment, definition of, 269 

 Pineal, neuroglia in, 588 



parenchyma of, 596 

 Pinene, physical properties of, 626 

 Pinkus's method for skin, 424 

 Pitch, as ingredient of Hood and Ncill's 



cement, 656 

 Pittfield's method for bacterial flagella, 



483 

 Pituitary, differentiation of all types in, 425- 

 428 

 nerve fibers in, 556 

 Placoid scales. 323, 386 

 Planaria, narcotizing, 265 

 Plankton, bulk fixation of, 53 

 centrifuge for, 28, 37 

 concentrating, by, centrifuge, 28 



phototropism, 30 

 fresh water, Gray's technique for, 67-68 

 net, 48 



preserving, 49 

 stains for, 513 

 Planorbis, eggs of, 564 

 Plant cell walls, iron stain for, 610 

 Plant histology, methods for, 367, 391-393 

 Plant materials, softening, 667 

 Plant mitochondria, 531 

 Plant nuclei and chromosomes, see Nuclei, 



special methods for 

 Plant ovaries, 435 

 Plant sections, skeletonizing, 381 

 Plant tissue, actinomycetes in, 501 

 bacteria in, 444, 498 

 fungal hyphae in, 501, 502 

 macerating techniques for, 263, 264 

 special methods for, 421-422 

 Plasma cells, in association with microglia, 



589 

 Plasma stains, complex, general remarks on, 

 329 

 miscellaneous, 340-341 

 phosphotungstic-(molybdic-)acid fuch- 



sin, 336-339 

 phosphotungstic-(molybdic-)other dyes, 

 339-340 

 double contrast, for blue nuclei, 327-329 



for red nuclei, 325-327 

 general remarks on, 319-320 

 single contrast, 319-322 

 Plasmodesma, methods for, 421, 422, 512 

 l^lasmodium, preparation of blood smears 

 containing, 71 

 special methods for, 506-510 

 Plastic cells, preparation of, 13 

 Plastic tool for making smears, 71 



Plasticizers, in Canada balsam, 639 

 Plastids, special methods for, 450 

 Plastin, 436 



Platinic chloride, as fixative, 205 

 basal fixative solution of, 237 

 fixative combinations with, 



chromic acid, 207; copper salts and 

 dichromates, 206; dichromates, 207; 

 formaldehyde, 205; formaldehyde and 

 acetic acid, 205; mercuric salts, 206; 

 mercuric salts, picric and chromic acids, 

 206; osmic acid, 195, osmic and chromic 

 acids, 195, 196; osmic acid, chromic acid 

 and thorium salts, 196; osmic acid and 

 dichromates, 196; osmic acid and mer- 

 curic salts, 195; osmic acid, mercuric 

 salts, and chromic acid, 195; osmic and 

 picric acids, 195; picric acid, 206 

 in S(5guin's method for spirochetes, 598 

 Platyhelminthes, narcotizing and fixing. 



53 

 Platyhelminthes, see also Turbellaria, Liver 



fluke, etc. 

 Plehn's double stain, 372 

 Pluteus larva, 153-156 

 Podhradszky's, developer, 619 

 fixative, 192, 250 

 silver nitrate stain, 550 



in Podhradszky's method for nerve cells 

 and processes, 556 

 Podwj^ssozki's fixative, 197, 250 

 Pohlman's embedding wax, 647 

 Pol's triple stain, 326 

 Polar bodies, in bacteria, 491 

 Police's phosphomolybdic-hematojcylin, 292 

 Polishing, materials for, 81 

 Polishing sections, of balsam-embedded coral, 

 86 

 of bone, 84 

 Pollaillon's method for nerve fibers in teeth, 



610 

 PoUak's, method for neuroglia, 587 



quadruple stain, 338 

 Pollen grains, Margolena's method for, 293 



strewn slide of, 309-310 

 Pollen mother cells, 435, 437 

 Pollen tubes, methods for, 421-422 

 Polychaetae, 53 

 Polychrome coelestin blue, 368 

 Polychrome methylene blue eosinates, 345- -s 

 347 

 in, Langeron's double stains, 353 

 Neisser's stain, 490 

 staining combinations with, 



orcein, 353; tannin and orange G, 353; 

 various eosins, 345-347, 350 

 Polyethylene glycols, 643 

 Polysaccharides, Hotchkiss's mordant for, 



515 

 Polystyrene mountants, 641 



