348 



INDEX. 



Oxytricha form of Trichoda, ii. 47-49. 

 ter, shell of, ii. 176, 177. 



Pachymatisma, spicules of, ii. 120. 



Pacinian corpuscles, ii. 286. 



Palates of Gasteropods, ii. 180-183. 



Palm, stem of, i. 367, 368. 



Palmellacece, L 245, 246. 



Palmodictyon, i. 246. 



Palmoglcea macrococca, life-history of, 



i. 230, 231. 

 Papillae of Skin, structure of, ii. 274, 



285; capillaries of, ii. 298; of Tongue, 



ii. 285. 



Parabolic Speculum, i. 116. 

 Parabolized Gas-Slide, i. 125. 

 Paraboloid, i. 107, 108; immersion, i. 



108, 109. 



Paraffin, imbedding in, i. 194-196. 

 Paramecium, ii. 42; contractile vesicles 



of, ii. 45; binary subdivision of, ii. 46; 



sexual generation (?) of, ii. 49. 

 Parasitic Fungi in Animal bodies, i. 



317-321; in Plants, i. 323, 324. 

 Parker, Mr. Jeffery, on Hydra, ii. 122. 

 Parkeria, ii. 83-85. 



Passulus, fungous vegetation in, i. 321. 

 Paste, Eels of, ii. 93. 

 Pasteur, M., his researches on ferments, 



i. 313; on pebrine, i. 315. 

 Patella, palatal tube of, ii. 182. 

 Pearls, structure of, ii. 174. 

 Pebrine, i. 315. 

 Pecari, hair of, ii. 265. 

 Pecten, eyes of, ii. 190; tentacles of, ii. 



191. 



Pedalion, ii. 58, 63. 

 Pedesis, Prof. Jevons on, i. 154. 

 Pediastrece, structure of, i. 270-273; 



multiplication and development of, 



i. 270, 271; varieties of, i. 272. 

 Pedicellariae of Echinoderms, ii. 144. 

 Pedicellina, ii. 162. 

 Pelargonium, cells of petal of, i. 383. 

 Pelomyxa palustris, ii. 17. 

 Peneroplis, ii. 66, 71. 

 Penetrating power of Object-glasses, i. 



163, increase of, with Binocular, i. 



38. 



Penicillium, i. 323. 

 Pentacrinoid larva of Comatula, ii. 152- 



156. 



Pentacrinus, skeleton of, ii. 146. 

 Perennibranchiata, bone of, ii. 257; 



blood-corpuscles of, ii. 269, 270. 

 Peridinium, ii. 37, 38. 

 Peristome of Mosses, i. 389-342. 

 Peronospora, i. 323. 

 Perophora, ii. 167, 168. 

 Petals of Flowers, structure of, i. 383. 

 Petrology, Microscopic, ii. 312-317. 

 Pettenkofer's test, i. 208. 

 PHANEROGAMIA, distinctive peculiari- 

 ties of, i. 352, 353; elementary tissues 



of, i. 353-367 (see Tissues of Plants); 



Stems and Roots of, i. 367-377; Cuti- 



cles and Leaves of, i. 377-382; Flowers 

 of, i. 382-386; Seeds of, i. 386-388. 



Phyllopoda, ii. 209. 



Picric acid, for hardening, i. 203. 



Picro-aniline, as staining agent, i. 207. 



Picro-carmine, as staining agent, i. 206. 



Pieridce, scales of, ii. 221, 222. 



.Pigott, Dr. Royston, his Aplanatic 

 Searcher, i. 8 note; his Micrometers, 

 i. 92 note; on angle of aperture, i. 

 162; on scales of Insects, ii. 224, 226. 



Pigment-cells, ii. 275, 276; of Cuttle- 

 fish, ii. 191; of Crustacea, ii. 215. 



Pigmentum nigrum, ii. 275. 



Pilidium-larva, of Nemertes, ii. 199. 



Pillischer, Mr. , his International Micro- 

 scope, i. 59, 60. 



Pilulina, ii. 79. 



Pinna, structure of shell of, ii. 171-173; 

 fossil, in Chalk, ii. 307. 



Pinnularia, i. 298. 



Pistillidia, see Archegonia. 



Pith, structure of, i. 354, 368. 



Placoid scales of Fish, ii. 263. 



Planaria, ii. 194, 195. 



Planorbulina, ii. 89. 



Plantago. cyclosis in hairs of, i. 359. 



Plants, distinction of, from Animals, 

 i. 222-224. 



Plasmodium, of Myxomocetes, i. 326; 

 of Protomyxa, ii. 3. 



Plate-glass Cells, i. 182. 



Pleurosigma, i. 298; nature of markings 

 on, i. 274-279; value of, as Test, i. 170- 

 172; diverse aspects of, i. 146-151; 

 diffraction-spectrum of, i. 160. 



Pluteus-larvsi of Echinus, ii. 152. 



Plumules of Butterflies, i. 221. 



Pocket Microscope, Beale's, i. 80. 



Podophrya quadripartita, ii. 39-41. 



Podura, scale of, ii. 223-227; use of, as 

 Test object, i. 172, 173. 



Poisons, detection of, ii. 326. 



Polarization, Objects suitable for, i. 

 318-323. 



Polarizing Apparatus, i. 111-114. 



Polistes, fungous vegetation in, i. 318. 



Pollen-grains, development of, i. 383; 

 structure and markings of, i. 383- 

 385. 



Pollen-tubes, fertilizing action of, i. 

 386. 



Poly celis, ii. 195. 



Polyclinians, ii. 165. 



Polycystina, ii. 109, 113-116. 



Polygastrica, see Infusoria. 



Polymorphina, ii. 85. 



Polyommatus argus, scale of, ii. 222, 

 223. 



Polypes, see Hydra and Zoophytes. 



Polypide of Polyzoa, ii. 157. 



Polypodium, fructification of, i. 345. 



Polystomella, ii. 92-94. 



Polythalamous Foraminifera, ii. 66-68. 



Polytoma uvella, ii. 29. 



Polytrema, ii. 90. 



