INDEX. 



365 



Natural or diatonic scale, 297. 



Naturalist's telescope, 359. 



Nature, calendar of, 150. 



Nautilus resembling foraminifera, 148. 



Navicul® under the microscope, 69. 



Necrodes littoralis, 309 ; grandis, ruspator, giganteus, 310. 



Necrophora, do they bury animal bodies, 308. 



Necrophorus germanicus, vestigator, mortuum, and vespillo 



described, 309. 

 Needles, Isle of Wight, 126. 

 Nests, seasons of building, 153. 



Nettle, relations of wasp to, 77; caterpillars found on, 79. 

 New planet, 360. 



New Zealand, birds of, 41 ; geysers of, 114. 

 Nobert's test-lines, 333. 

 Nodosaria species, 148. 

 North polar group of volcanic craters, 256. 

 Northwick collection of coins, 208. 

 Notation, musical exercises in, 190. 

 Notommata clavulata, 313. 

 Notornis, a wingless bird, 42. 

 NuMisMATT. See Coins. 

 Nut, history of its decay, 356. 



Oak, geometry of its leaves, 14<0. 



Observation, astronomical hints on, 354. 



Observations of burying-beetles, 307. 



Observation of birds and insects by means of telescope, 359. 



Observation of Nature : brook and pond gatherings, 7, 

 69, 310; night-flying moths, 25; naturalist's calendar of 

 observations, 150 ; balance of life and death in the aqua- 

 rium, 226. See also Natueal History, METEOEOLoaY, 

 Microscope, Geology, etc. 



Occultations of Jupiter's satellites, 360. See also Astro- 

 nomy. 



Occultation of Saturn, 35 ; various stars by the moon, 35. 

 See also Astronomical Observations. 



Odours of flowers, 340. 



Oil-coloured photographs, 188. 



Onoclea sensibilis, 76. 



Oolitic freestones abound in foraminifera, 149. 



Opaque-shelled foraminifera, 148, 149. 



Operating-room for photography, 336, 337. 



Optical delusions, 288. 



Optical Phenomena : apparent reversion of gravity by 

 gyroscope, 35 ; appearance of star under telescope, 108 ; 

 observation of light illustrated by railway signals, 122 ; 

 stereoscopic phenomena, 167, 252 ; reflection from polish- 

 ed surfaces, 194; vision through coloured^ media, 251; 

 binoscopic vision, 218 ; star scintillations, 292 ; eff'ects of 

 differently-coloured targets, 223. See also Colour. 



Orobanche ramosa on roots of hemp, 294. 



Order of strata forming crust of earth, 323. 



Ore, extraction of lead from, 291, 349. 



Oriental vice of smoking hemp, 295. 



Origin of words, 108. 



Ornithology the chosen science of Audubon, 261. 



Oseula of sponges. 111. 



OscQlatoria in stagnant water, 155. 



Osmunda regaMs, 76. 



Ostrich of America, 41. 



Other people's pets, 288. 



Otto of distilled flowers, 341, 342. 



Oxygen exhaled by microscopic animals, 229; generation 

 of in aquaria, 227. 



Oysters, parasitic on crab, etc., 96. 



Pfficilocampa populi, a nocturnal moth, 28. 



Pagan rites and ceremonies, 45, 100; use of hemp in, 293. 



Panicles of grasses, 317. 



Parasites of roots of hemp, 294. 



Parasitical fungi, to preserve, 68 ; in decayed nut, 357. 



Pattisonized lead, 352. 



Pavonina triangularis, 148. 



Peacock in device on ancient coins, 102. 



Pedicels of cowslip and other plants, 316. 



PeUitory, crystals of, 245. 



Pendulum, use of, in determining latitude, 265. 



Peueroplis Austriaca, 148. 



Performing birds, to train, 304. 



Perfumes, how extracted from flowers, 342. 



Petasia cassinea, a nocturnal moth, 28. 



Pets, other people's, 288. 



Pevensey Castle, the site of recent geological changes, 37. 



Pheosia dictsea, a nocturnal moth, 27. 



Phosphorescence of sea, cause of, 145. 



Photography, anecdote history of, 187, 231 ; heliography, 

 231 ; Talbot}'pe, 231 ; portrait-taking, 231 ; portraits in 

 natural colours, 232; Hillotype, 232; experiments of Her- 

 scheU and Biot, 233 ; history and uses of water-glass, 20 ; 

 Skaife's instantaneous camera, 108 ; practical instructions 

 in the collodion process, 335 ; chemicals required for, 336 ; 

 Kmnear's and Fowkes's cameras, 337. 



Phrenology in the poultry-yard, 104. 



PhyUotaxis, essay on, 140. 



Physical evidences of internal heat of the earth, 253, 325. 



Pigeons, fecundity of, 108. 



Pistil and other sexual organs of plants, 164. 



Plane sections of a cube, 274. 



Planetary conjunctions, 223. 



Planets, new, 144; intra-mercurial, 251 ; new planetoid, 360. 



Plant animals, 311. 



Plant fossils. Isle of Wight, 127 ; in coal, 233, 343. 



Plants for fresh-water aquaria, 76. 



Plaster casts, to render like wax, 323. 



Plutonic geology, 253, 325. 



Poetry and science, relation of, 253. 



Polished surfaces, reflection from, 194. 



Pollen of flowers, 163. 



Polymorphina lactea and complanata, 148. 



Polystichium coriaceum, 77. 



Pond-lore, microscopic, 310. 



Poppy, structure of the flower, 54. 



Porifera on sponges, 109. 



Portable furnace, 180. 



Portraits, taking photographic, 231 ; on ancient coins reli- 

 able as such, 46, 100 ; on coins of Seleucus, 204. 



Poultry, unusual forms of the skulls of some kinds, 105. 



Power of microscope, test of, 333. 



Practical photography, essay on, 335. 



Press for drying mosses, 210. 



Primularia carmnalis, 86. 



Problems in musical notation, 666. 



Processions, ancient, as recorded on coins, 46, 100. 



Process of taking collodion photographs, 338. 



Propagation of plants by candle-heat, 324. 



Psyche and the butterfly, 82. 



Pteris serrulata, 77. 



Ptolemy, Lagus and Philadelphus, coins of, 45. 



Pyraustes of EUan, 83. 



Quartz, separation of lead from, 292. 

 Quercus suDer, or cork-tree, 64. 



Eacemes of currant and other plants, 317. 



Railway train, a lesson in aberration, 122. 



Eaphides, or plant crystals, 242. 



Eats, their destruction of Audubon's collection, 263. 



Rebuses for students of music, 300. 



Recreative Science defined, 1 ; its limits, 2 ; its uses, 2. 



Reflection from polished surfaces, 194. " 



Refraction astronomically considered, 279 ; a phenomena of 



eclipse, 279. 

 Resinous product of hemp, 294 ; of trees, 63. 

 Respiration of fishes, 228 ; of insects, 81. 

 Rests in music, 297. 

 Eetino-kUbanon, or slide-dryer, 71. 

 Revealed knowledge, in harmony with the teachings of 



science, 333. 

 Revival of dried rotifers, 312. 



Revolution of earth, a measure of its relative bulk, 331. 

 Revolving storms, 180. 

 Ehea Darwinii, 41. 



Rhizopoda, fossil, 145 ; example of protozoic life, 110. 

 Rifleman's eye, an anecdote, 323. 

 Robin redbreast, his character, 181 ; history, 182 ; habits, 



183 ; pugnacity, 184 ; fondness for human society, 185 ; 



art of taming, 185 ; management in a cage, 185 ; legends 



of, 186. 

 Kock-forming microzoa, 143. * 



