Index. 



489 



Mutual help in scientific studies, 473. 

 Mythology of South. America, 135. 



Natural History and Zooxogy.— 

 Flukes, 24 ; skipper, 46 ; new rotifer, 

 49 ; insect varieties, 76 ; production 

 of queen bee, 76 ; brain of quadrumana, 

 78 ; aye-aye, 80, 130 ; Welwitschia, 

 81 ; inangold-wurzel fly, 82 ; circu- 

 lation of tadpole, 82 ; oysters not 

 found in Baltic, 83 ; infusorial life, 

 85 ; insect vision and sleep, 102 ; 

 liver entozoon of cattle, 115 ; incuba- 

 tion of the python, 123, 237 ; fossil 

 remains of man, 157 ; bees and their 

 counterfeits, 165 ; diatoms, 190 ; eye 

 of cod-fish, 199 ; fish world at home, 

 223 ; dicyodont reptilia, 236 ; progress 

 of zoology, 245 ; haunts of the condor, 

 278 ; fungi, 288 ; silk-producing 

 moths of Asia, 321 ; lepidosiren, 322 ; 

 vocal fishes, 324 ; exotic bees, 334 ; 

 parasites from the Zoological Gardens, 

 347 ; angler fish, 353 ; feathered rep- 

 tile of Solenhofen, 367 ; acari in pho- 

 tographic baths, 378 ; hairless men of 

 Australia, 393 ; leeches, 402 ; Entomo- 

 straca^ 446 ; frontal sinuses of Bos buf- 

 falus, 457 ; Australian naturalists, 469. 



Navicula ellipsis, ambigua, elegans, cus- 

 pidata, tumeus, Jennerii, 196 ; and 

 mutica, 194. 



Nebula, spiral, 481. 



New alloys, 403. 



New Guinea, trade of, 81. 



New rotifer, 49, 234, 404. 



New planet, 484. 



Nice, trepidation of soil at, 324. 



Nitzschia sigma and dubia, 194 ; palea,196. 



Nutrition of acari, 379. 



Oak timber, decay of, in sea-water, 249. 



Oceanic life, distribution of, 224, 249. 



Odontidium mesodon in brooks, 196. 



Ogun, account of, 155. 



One-chimney houses, 83. 



Ophidian reptiles, 124. 



Ophrys, fertilization of, 390. 



Orchids, fertilization of, 320. 



Orthosira arenaria, mirabilis, and spinosa, 

 197. 



Oxse flavescens, an exotic bee, 337. 



Oxides of copper, 68. 



Oxidized oil a substitute for elastic gums, 

 320. 



Ovary of infusoria, a basis of classifica- 

 tion, 464. 



Oyster-shell Island, 483. 



Oysters not found in the Baltic, 83. 



Paraffin oils, 482. 



Parasites in eye of cod-fish, 208. 



Parasites of the crder Trematoda, distri- 

 bution and characters of, 2o, 115. 



Parasitic bees, 166. 



Pasteur on fermentation, 241. 



Pasteur's experiments on spontaneous 

 generation, 97. 



Peculiar greens, 402. 



Pellicle on infusions, analysis of, 96. 



Penicilhum and sclerotium identical, 290. 



Percy's metallurgy reviewed, 67. 



Persian inscriptions deciphered, 101. 



Petroleum springs of America, 163. 



Peziza and sclerotium, how related, 293. 



Phosphorescence of the sea, 483. 



Photographic hints, 402. 



Photography and ethnology, 162. 



Physics. — Discoveries in, 4 ; prime 

 movers,10 ; visible vibrations by voltaic 

 currents, 77 ; dispersion of light, 82 ; 

 crystals, 83 ; absorption and radiation 

 of heat by gases, 155 ; divisibility of 

 matter, 162 ; vis inertia?, 164 ; heights 

 of meteors, 217 ; volcanic action, 240, 

 241 ; solar repulsion, 286 ; Plateau's 

 films, 319 ; spectrum analysis, 362 ; mag- 

 netic perturbations, 36S ; experiments 

 on solubility, 481 ; mountain barometer, 

 4S4; Dr. Tyndall on force, 480. 



Pig iron of the Romans, 299. 



Pinnularia cyprinus and peregrina on 

 ditch weeds, 194. 



Planetary shadows, 72. 



Planing machines at International Exhi- 

 bition, 425. 



Plateau's films, 319. 



Pleurosigma fasciola, scalprum, augula- 

 tum, and strigilis, 194. 



Podosphenias in salt lagoons, 195. 



Poisons, classification of, 386. 



Poisonous fungi, 244. 



Polarization, preparation of microscopic 

 objects for, 82, 175,401. 



Portable styptic, 403. 



Potamogeton, diatoms of, 195. 



Potassium, use of, in obtaining alumi- 

 nium, 179. 



Pottery, examples of Roman, 41. 



Pouchet's experiments on spontaneous 

 generation, 85. 



Prime movers, 10. 



Progress of science in 1861, 1. 



Properties of aluminium, 184. 



Pulex irritans, vision of, 104. 



Python, incubation of, 123. 



QuADRtraiANA, posterior lobes of brain, 78. 



Railways and health, 482. 

 Regenerative steam-engine explained, 15. 

 Reproductive system of the entozoons, 



110 ; of the trematodes, 31. 

 Reptilia from South Africa, 236. 



