476 



Index. 



Hincks on the medusse of hydroid 



polyps, 471. 

 Hirudo niedicinalis, 355. 

 Homocercal fishes, 444. 

 Honey crystals, 94. 



Honey, its origin and adulteration, 90. 

 Honey bee, dissection of, 90. 

 Hooping cough, cure for, 228. 

 Horn, third, of giraffe, 16. 

 Horns. 162 ; is the giraffe provided 



with more than two ? 12. 

 House fly, 396. 



Human body, development of the, 227. 

 Human skeleton, fossil, 280. 

 Human voice, mechanism of, 148 ; 



imitation of, 390. 

 Huyghenian eye-piece, 62. 

 Hyas coarctatus, 76. 

 Hybrid plants, 230. 

 Hydraulic illusions, 140. 

 Hydro-carbon, calorific power of, 63. 

 Hydroid polyps, medusae of, 471. 

 Hydrogen, calorific power of, 63. 

 Hylisinus Fraxini, 33. 



Ianthina, animal and float of, 471. 



Illumination, artificial, for micro-pho- 

 tography, 160. 



Ilobates propmqua, capture of, 61. 



Indian tombs, ancient, 333. 



Infusoria, the influence of mass on the 

 production of, 166 ; Professor Wyman 

 on, 229 ; Englemann on, 310 ; origin 

 of, 320 ; eggs of, 324. 



Insect destroying powder, 66. 



Insect enemies of the elm, 191. 



Insect flying under water, 225. 



Insects, injurious to the elm, 28; cap- 

 tured by the Entomological Society, 

 61 ; destruction of, by hard-billed 

 birds, 386 ; feet of, 393. 



International Exh ibition, gleanings from 

 the, 64, 143, 226 ; zoology of the, 160. 



Iodine vapour, refraction of, 147. 



Iodine, the reaction of, 391. 



Jesuit's bark, 456. 



Julus maximus, 394 ; terrestm, 394. 



Koepods in infusions of hay, 324. 

 Kyanol, or aniline, 114. 



Lakes, Ramsay on the glacial origin of, 

 228. 



Lama in Australia, 163. 



Lamont's new theory of atmospheric 

 vapour, 368. 



Lamprey, the sea, 411. 



Lamprey pie, ancient customs concern- 

 ing, 416. 



Landscape art ,123. 



Language of animals, 21. 



Larva of insects, 99. 



Lassell on an annular nebuloe, 353. 



Leech, cocoons of the, 356. 



Leech-lore, 354. 



Lepralia, examples of marine, 343. 



Leptis, foot of, 396. 



Levant madder, 111. 



Life in the deep sea, 284. 



Life, organization and, 183. 



Light, zodiacal, 390. 



Linnean society, 468. 



Liparis dispar, virgin generations of, 105. 



Live animals in the Exhibition, 226. 



Lizards of the secondary rocks, 443. 



Long spectrum of electric light, 309. 



Loxa bark, or quinaquina, 454. 



Lutanist competing with nightingales,21. 



Macrorhintts proboscideus, 161. 



Madder orange, 113. 



Madder, 111 ; improvement of the 

 colouring properties of, 113. 



Magnetic perturbations andaurora«, 469. 



Magnetic needle, perturbations of, 39. 



Mammalia, development of the egg 

 of, 98. 



Mangelia, 79. 



Manna, how formed, 91. 



Mars, Secchi on, 472 ; opposition of, 

 131. 



Marsupial animals, 97. 



Mauve dye, 115. 



Medusae, jelly-fish, 101. 



Membranipora membranacea, marine 

 architects, 343. 



Metamorphosis of insects, 99. 



Meteoric stone of Chassigny, 390. 



Meteorological observations made at the 

 Hew observatory, 46, 292. 



Meteor seen on the 29th November, 

 1862, 422. 



Micro-photographs, Dagron's, 229. 



Microscope, the eye and the, 427 ; 

 lamps for the, 429 ; Warrington's 

 portable, 349 ; Carpenter on the, 348; 

 hints to beginners with the, 243. 



Microscopic objects, arrangement for 

 carrying, 391. 



Microscopic printing and writing, size 

 of, 470. 



Microscopic writing, engraving, and 

 printing, 298. 



Microscopst. — Microscopic diamond 

 writing, 143 ; photographic delinea- 

 tion of microscopic objects, 158 ; 

 hints to beginners, 245 ; microscopic 

 writing, engraving, and printing, 298 ; 

 microscopic vertebrata, 310, 471 ; mi- 

 croscopic address cards, 312; fish-hook 

 spicula), 312 ; Carpenter on the mi- 



