INDEX. 



349 



POLYZOA, general structure of, ii. 157- 



163; classification of, ii. 162. 

 Polyzoary, ii. 157. 

 Pond-Stick, Baker's, i. 219. 

 Poppy, seeds of, i. 386, 387. 

 Popular Microscope, Beck's, i. 68. 

 Porcellanous Foraminifera, ii. 68, 70- 



Porcellanous shells of Gasteropods, ii. 

 178. 



Porcupine, quill of, ii. 265. 



PORIFERA, see Sponges. 



Portable Binocular, i. 83. 



Potato-disease, i. 323. 



Powell and Lealand's Microscopes, i. 

 67, 68, 77, 79; their non-stereoscopic 

 Binocular, i. 85; their Achromatic 

 Condenser, i. 103; their Light-modi- 

 fier, i. 110; their Oil-immersion objec- 

 tives, i. 18; their Vertical Illuminator, 

 i. 116. 



Prawn, shell of, ii. 215. 



Preservative Media, i. 209-211 



Primordial Utricle, i. 225, 356. 



Pringsheim, Dr., his observations on 

 Vaucheria, i. 251; on Hydrodictyon, 

 i. 252; on CEdogonium, i. 258. 



Prismatic Shell-substance, ii. 171, 172. 



Prism, Amici's, i. 106; Nachet's Erect- 

 ing, i. 88; Wenham's Binocular, i. 30, 

 85; Stephenson's Binocular, i. 31; 

 Camera Lucida, i. 96-98; Spectro- 

 scope, i. 90; Polarizing, 111, 112. 



Proboscis, of Bee, ii. 234, 235; of Butter- 

 fly, ii. 236; of Fly, ii. 234. 



Proteus, blood- corpuscles of, ii. 269, 

 270. 



Prothallium of Ferns, i. 346-348. 



Protococcus, life-history of, i. 231-236. 



Protomyxa, ii. 2, 3. 



Protoplasm, i. 222; of Vegetable cell, i. 

 224-228; of Aninfals, ii. 253-255. 



PROTOPHYTA, general characters of, i. 

 222-228. 



Protophytic Algee, i. 229-306. 



Protophytic Fungi, i. 229, 307; relation 

 of, to Protozoa, i. 307; cultivation of, 

 i. 123, 307. 



PROTOZOA, ii. 1, 2; their relations to 

 Protophyta, i. 224. 



Pseud-embryo of Echinoderms, ii. 150. 



Pseudo-navicellse of Gregarinida, ii. 21. 



Pseudopodia of Rhizopods, ii. 2-19, dif- 

 ferent forms of, ii. 7. 



Pseudoscope, i. 27, 28. 



Pseudoscopic Microscope of MM. 

 Nachet, i. 33-36. 



Pteris, fructification of, i. 345; prothal- 

 lium of, i. 346. 



Pterodactyle, bone of, ii. 3 12. 



Puccinia, i. 323. 



Purpura, egg-capsules of, ii. 184; devel- 

 opment of, ii. 187-189. 



Pycnogonidce, ii. 205-207. 



Quadrula symmetrica, ii. 19. 



3, M. de, on luminosity of 

 Annelids, ii. 202. 



Quekett, Prof. J. , his Dissecting Micro- 

 scope, i. 45; his Indicator, i. 96; on 

 Raphides, i. 363; on structure of Bone, 

 ii. 258, 311. 



Quinqueloculina, ii. 71. 



Radiating Crystallization, ii. 320, 321. 



Radiolaria, ii. 109, 110; their relation 

 to Heliozoa, ii. 109; their general 

 structure, ii. 110, 111; their classifica- 

 tion, ii. 112, 113; collection and 

 mounting of, ii. 115, 116. 



Rainey, Mr., his Light modifier, i. 110; 

 on Molecular coalescence, ii. 313-325. 



Ralfs, Mr., on Desmidiacese, i. 263 note; 

 on Diatomaceae, i. 284 note. 



Ralph, Dr., his mode of mounting, i. 

 215. 



Ramsden's Micrometer, i. 92, 93. 



Raphides, i. 363. 



Re-agents, Chemical, use of, in Micro- 

 scopic research, i. 208, 209, ii. 326. 



Red Corpuscles of blood, ii. 267-270. 



Red Snow, i. 245. 



Reflection by Prisms, i. 2, 3, 



Reflex Illuminator, Wenham's, i. 109. 



Refraction, laws of, i. 1-3; by convex 

 lenses, i. 3-5; by concave and menis- 

 cus lenses, i. 5-6. 



Reindeer, hair of, ii. 264. 



Reophax, ii. 82. 



REPTILES, bone of, ii. 257, 258, 311; 

 teeth of, ii. 259, 311; scales of, ii. 263; 

 blood of, ii. 268-271; lungs of, ii. 299, 

 300. 



Resolving power of Object-glasses, i. 

 158, 164. 



Reticularia, ii. 7-11. 



Reticulated Ducts, i. 366. 



Rhabdammina, ii. 80. 



Rhinoceros, horn of, ii. 267. 



Rhizocarpece, i. 350. 



RHIZOPODA, ii. 7-19; their subdivions, 

 ii. 7, 8; their relation to higher Ani- 

 mals, ii. 252, 253. 



Rhizosolenia, i. 296. 



Rhizostoma, ii. 134. 



Rhodospermece, i. 334. 



Rhubarb, raphides of, i. 363. 



Rhynchonellidce, structure of Shell of, 

 ii. 178. 



Rice, starch-grains of, i. 362. 



Rice-paper, i. 354, 355. 



Ricinice, ii. 249. 



Ring-Cells, i. 181. 



Ring-Net, i. 219-221. 



Rivet-Leiser Microtome, i. 192, 193. 



Roasted Corn, detection of. in Chicory, 

 i. 388. 



Robin, M., on Noctiluca, ii. 34 note, ii. 

 37 note. 



Rochea, epidermis of, i. 378. 



Rocks, structure of, ii. 304-310 313- 

 317. 



