706 



INDEX. 



601, 690, 702, 749, 756, 

 n. 308, 558. Corrections. 

 B. 1660, D. 1742. 



Halo, II. 303, 316. 



Halos, I. 443, PI. 29, II. 

 303, 635. 



Hamber[;er, II. 126, 127, 

 379, 380, 480. 



Hamburgisches magazin^II. 

 108. 



Hamilton, I. 65, II. 121. 

 Captain T. Hamilton, II. 

 241. Captain T. Hamil- 

 ton's gage, I. 318, 319, 

 PI. 22. Sir W. Hamil- 

 ton, I. 717, 718, 719. 



Hammer, I. 80, 205. 



Hammering, I. 142, 222, II. 

 383. 



Hammering brass, I. 694. 



Hammer of the ear, I. 387. 



Hand, II. 150. 



Handel, II. 572. 



Hand, gripe, or stay, 11.181. 



Hand hoe, II. 211. 



Handmaid to the arts, II. 

 136. 



Hands of timekeepers, II. 

 194. 



Hangings, II. 179.. 



Hanin, I. 127. 



Hannoeverische nuetzliche 

 sammlungen, II. 491. 



Hannoeverisches magazin, 

 II. 479. 



Hanow, U. 126, 403, 483. 



Hanson, II. 593. 



Harbours, 1.315,11.199,233. 



Hard bodies, I. 370, 11. 383. 



Harding, I. 508, 603, II. 

 334, 673. 



Hard iron, II. 403. 



Hardness, II. 169, 378. 



Harmattan, II. 458, 465. 



Harmonica, I. 401, II. 267. 

 274. 



Harmonic curve,II. 25, 558. 



Ilarmonicenrves combined, 



II. 25. 

 Harmonic mean, II. 6. 

 Harmonics, I. 258, 389. 

 Harmonic sliders, II. 273. 

 Harmonicsofchords,II.548. 

 Harmonics of the voice, II. 



550. 

 Harmonic sounds, I. 380, 



382, II. 539, C47. 

 Harmony, I. 391, II. 563. 

 I larmony of colours, II. 6 17. 

 Harness, I. PI. 18, II. 188. 

 Harnesses, 11. 203. 

 Harp, I. 397, 

 Harpoon, II. 208. 

 Harps, II. 275. 

 Harpsichord, 1. 398,11. 271. 

 Harrington, II. 384. 

 Harriot, II. 166. 

 Harriott, II. 252. 

 Harris, II. 107, 266, 280. 

 Harris, II. 315. 

 Harrison, I. 196, 200, 251, 



253, 602, II. 191, 375. 



13. 1694, D. 1776. 

 Harrowing, II. 212. 

 Harrows, 11. 204. 

 Hartmann,II. 416,481,485. 

 Hartjoeker, II. 280. 

 Harvest moon, I. 530, II. 



345. 

 Harvey, I. 748, B. 15T8, 



D. 1657. 

 Hasius, II. 374. 

 Hassencamp, II. 376. 

 Hassenfratz, II. 178, 325. 

 Hatcbett, U. 202, 671. 

 IXatcliing eggs, II. 424. 

 Hats, I. 187, 189, 218. ■ 

 Hatton, I. Ill, 191. 

 Haubokl, II. 387. 

 Hauksbee, I. 296, 299, 356, 



483, 749, 754, 756, II., 



125, 261, 295, 300, 414, 



526, 657, 666. 

 Uauscn, II. 331, 379, 515, 



Hautboy, I. 402. 



Ilautes Fagnes, II. 480. 



Hauy, II. 129, 418, 511, 

 664,666,675,676. 



Havre, 11.233. 



Hawkins, II. 280, 567. 



Hawser, I. 182. 



Hay, II. 202. 



Ilaydn, II. 572. 



Hayles, II. 114. 



Hearing, I. 386, 388, II. 

 271,574,618. 



Hearing of insects, 11.679. 



Hearing trumpet, I. PI. 35, 

 H. 271. 



Heart, I. 291, 11. 221. 



Heat, I. 619, 631, 667,686, 

 745, 747,750, PI. 39,11. 

 257, 293, 295, 296, 379, 

 383, 450, 452, 465, 516, 

 615,623,631,647, 652, 

 681. Capacity for heat, 

 11.508. Economy of heat, 

 II. 410. Effect of heat on 

 sound, I. 370, II. 265. 

 Effect of heat on vibra- 

 tions, I. 380. Effects of 

 heat on the form of aggre- 

 gation, II. 394. Nature of 

 heat, I. 646, II. 413. 



Heat acquired by metals, II. 

 405. 



Heat as afiecUng electricity, 

 II. 425. 



Heat at different heights, 

 II. 450. 



Heat denominated latent, 

 II. 409. 



Heated room, II. 403, 517. 



Heat from condensation, II. 

 408. 



Heat from electricity, I.fr7 1. 



Heat from mirrors, I. 423. 



Heating, II. 386, 404. 



Heating a magnet, II. 440. 



Heating by light, II. 406. 



Heating rooms, II. 410, 41 1 ,. 



Heat of a candle, II. 40tr. 

 Hoat of a pencil of rays, IT. 



406. 

 Heat of different latitudes, 



I. 697. 



Heat of lime, II. 408. 

 Heat of mixtures, I. 647, 



II. 408. 



Ileat of the botlQm of a 

 vessel, II. 404. 



Heat of the celestial bo- 

 dies, II. 346. 



Ilcat of tlie moon's rays, 

 II. 106. 



Heat of the sun, H. 501. 



Heat of vegetables, II. 514, 

 5ir. 



Heat producing a draught, 



I. 345. 



Heat with compression, II. 



396. 

 Ilcavels, II. 188. 

 Heavens, II. 313. 

 Heavy systems, II. -135. 

 Hecatare, II. 152. 

 Hecatogramme, II. 162. 

 Hecatolitre, II. 152. 

 Hecatoraetre, II. 152. 

 Heckingham, II. 486. 

 Hecla, I. 690, II. 443, 

 Hedwig, II. 511. . 

 Hedysarura gyrans, II, 424, 



513. 

 Heidmann, H. 418, 

 Heidinger, II. 497. 

 Height of mountains, 1. 273. 

 Height of the atmosphere, 



II. 60, 



Heiglit of the barometer, 



II, 464. 

 Height of tides, I. 586, II. 



368. 

 Heights, I.PI.38,II.366,36.7. 

 Ileinsius, II. 335, 337. 

 Ilejeri, II. 349. 

 Heliodorus, II. 280. 

 Heliometer, II, 351.. 



