INDEX. 



599 



Habits of the Mexican axoloti, 317. 



of the salmou, 320. 

 Hadley's theory, 9. 

 Haeckel, Prof., 276, 2S1. 

 Haeckelina of Dr. Bessels, 344. 

 Hageu, Dr. II.,330, 331. 

 Hager, 4SS. 

 Hahn, Otto, 841. 

 Hail, ou the theory of, 93. 

 Hail-storms in France, 125. 

 Hall, Prof., 21, 23. 

 Halo about the planet Venus, 29. 

 Hamilton, Dr., 135. 

 Hams, Cincinnati, 533. 

 Hand-book of paleontology, new, 297. 

 Hankel, 219. 

 Hann.lOl. 

 Hannecker, 414. 



Hansen's method of partitions, 36. 

 Hanstein, Prof., 2S7. 

 Harcourt, V"ernon.41S. 

 Hardy, 528. 

 Hartley, W. Noel, 19S. 

 Harvard Observatory, fundamental stars 



observed at, 53. 

 Harvest, predicting the coming, 384. 

 Hatching silk-worms by electricity, 381. 

 Hatier, llo. 



Hay and grain, artificial drying of, 37S. 

 Hayaux da Tilly, ?,(I4. 

 Hayden, Prof. F. V., 233, 257. 

 Hayden's explorations in 1876, 242. 

 Hay-fever, investigation of, 534. 

 Hearder, Dr. Jonathan, 543. 

 Heat, conduction of, by building materi- 

 als, 145. 

 conduction of, in gases, 1S3. 

 of the earth, internal, 74. 

 Heath in America, 358. 

 Hebert, Governor, 406. 

 Heerman, Dr., 312. 

 Height of the aurora borealis, 132. 

 Heights in the lake region, 234. 

 Heis, Dr., 35, 95. 

 Helie, 82. 

 Heliozoa, 346. 

 HelIman,Dr.,SO. 

 Helmholtz, Prof., 274. 

 Hendricks, 26. 

 Heuneguy, 280. 

 Hennessey, J. B. N., 11, 154. 

 Henry Mountains, 257, 259. 

 Henry, Prof. Joseph, 12. 

 Henshaw, 312. 

 Herland, 200. 

 Hermit crab, strange parasites of the, 



335. 

 Herring-fisheries and the weather, 387. 

 Herschel, Capt., 11. 



Sir John, 17, 23. 

 Sir William, 23. 

 Herschell, Clemens, 467. 

 Hertwig and Lisser, 345. 

 Herve, 451. 

 Herwig, 165, 166. 

 Hesse, 335. 

 Hesz, 516. 



Heteromorphism in epigsea, 351. 

 Heyrowsky, 432. 

 Hibiscus caunabiuus, 362, 

 Hickie, 341. 

 Hicks, Dr., 236. 

 Hidding, Dr., 408. 

 Hildebrandsson, 93, 106. 



Hill. George W., 25. 



Hillebrand, 201. 



Hinge, self-closing, 411. 



Hipp, 113. 



Hirsch, Prof., 41. 



Hofmaun, 212. 



Hohenheim, German agricultural station 



at, 376. 

 Hohnhorst, Dr. Hermann, 33. 

 Holdeu, Prof. E. S., 16, 52, 235. 

 Hollbaur, 119. 

 Holmes, 244. 

 Holtzman, A., 464. 

 Hooker, Dr., 529. 

 Hops, preservation of, 383. 

 Horeau, 505. 

 Horner, Charles, 157, 

 Horse, evolution of the, 231. 

 Horsley, 424. 



Horticulture and botany, 347. 

 Hour-glasses, measure of time l)y, 64. 

 House-fly, the life of the common, 328. 

 Hovey, 347, 348. 

 Howe, H. A., 47. 

 Hoy, Dr., 400. 

 Hudson, Dr. C. T., 345, 

 Huet, A. F., 182. 

 Iluggins and Vogel, 20. 

 Hull, Prof., 227. 



Human fluke-worm, large, 337. 

 Humble-bees, carrying, from England to 



New Zealand, 308. 

 Humidity, computing relative, 110. 

 Humming-bird, a new North American, 



312. 

 Hunt, Dr. T. Sterry, 229. 

 Huntington, Prof, 3CS, 

 Hurricane of Sept. 9th to 17tli, 1875, 97. 

 Hurricanes, periodicity of, 112. 

 Huxley, Prof., 281, 342, 344. 



on deep-sea soundings, 344. 

 Hydraulic blower, automatic, 414. 

 cement, new, 470, 

 engine, stationary, 439, 

 investigations inlndia, 141. 

 Hydrocarbons of coal-gas, 214. 

 Hydrocellulose, 211. 

 Hydrogen in antimony, 193. 

 Hygiene, 525. 



Hygrometer, a new form of, 118, 

 Hygrometric studies of Dufour, 113. 

 Hyperbolic functions, 4. 

 Hypodermic injection of lactate of soda, 



525, 

 Hypsometric tables, new, 231. 



Ice calorimeter, new, 148, 



cellars on Brainard's plan, 427. 

 machine, Carre's, 522. 

 plasticity of, 137, 

 Iceland, temperature within the great 



geyser of, 109, 

 Illinois, triassic fauna of, 300. 

 Illumination, electrical, 413, 

 Improvement in aneroids. 111. 

 in fire-places, 420, 

 in spectroscopes, 153, 

 Incubation of Chromis paterfamilias, 322, 

 India, hydraulic investigations in, 141. 

 rainfall and evaporation in, 92. 

 Avinds and rains of, 126. 

 rubber, varieties of, 357. 

 Indian corn and endemic pellagra, 535. 



