INDEX. 



715 



Mechanical power, T. 331, 



II. 137, 140. 

 Mechanical powers,II. 135. 

 Mechanics, II. 27, 129, 137, 

 216. History of me- 

 chanics, I. 336. 

 Mechanism of the eye, II. 



.313. 

 Medical electricity, 11. 424. 

 Medical galvanism, II. 429. 

 Mediterranean, 1. 587, 708, 



II. 234, 367. 

 Medium of soand, II. 265. 

 Medusae, II. 292. 

 Medusa's head, I. 496. 

 Mcgameter, II. 351. 

 Meibomius, I. 405, 11.240. 

 Meindert Sorrcy, II. 441. 

 Melanderhjehn, II. 325, 



362. 

 Melanges de Turin, 11.109, 

 Melody, I. 392, II. 563. 

 Melody of speech, II. 276. 

 Melted glass, II. 396. 

 Melting, II. 394, 427. 

 Melting of ice, II. 408. 

 Melting point, II. 509. 

 Membraua pupillaris, II. 



311. 

 Membranatympani, 11.271. 

 Membranes. Vibrations of 



membranes, I. 381. 

 M3inoires de Dijon, II. 



110. 

 M6 iioires de Turin, 11.109. 

 M^moirespresent^s, 11.107. 

 Md;noires sur I'E^ypte, II. 



111. 

 Memory, II. 124. 

 Men, II. 164. 

 Mendoiia, II. 357. 

 Mendoza y llios, II. 371. 

 Meniscoid, It. 603. 

 Meniscus, 11. 662. 

 Meniscus lens, 1. 416, II. 79. 

 Menkar, I. 49r. 

 Menstrual parallax, !. 334 



Mensuration, II. 118, 156. 

 Menzies, 11. 518, 

 Menzoli, II. 272. 

 Mercator, II. 375. 

 Mercurial air pump, II, 



254. 

 Mercurial column, I. 270. 

 Mercurial level, II. 353. 

 Mercurial phosphorus, II. 



422. 

 Mercurial pump, II. 166, 



247. 

 Mercurial thermometer, I. 



647. 

 Mercurial vapours, II. 252. 

 Mercury, the metal, I. 276, 

 PI.39.II.381,382,403,461, 

 509,653,654,659. Pres- 

 sure of mercury, I. 265. 

 Mercury, the planet, I. 

 506, 532, 622, 623, II. 

 889, 353, 372, 659. 

 Meridian, I. 109, 536, PI. 



35, II. 147, 341, 354. 

 Meridians of Greenwich and 



Paris, II. 360. 

 Jleridional line, II. 374. 

 Meridional parts, II. 374. 

 Mersenne, I. 253, 405, 407, 

 II. 124, 264, 272, 546, 

 558. B. 1588, D. 1648. 

 Mersennus, II. 610. 

 Mery, II. 601. 

 Messenger, I. 205, II, 197, 

 Messier, I. PI. 31. 

 Melacentre, I. 266, II. 59, 

 Metacentric curve, II. 241. 

 Metallic surface, I. 709. 

 Metalline thermometer, II. 



386, 389. 

 Metals, I. 411, 678, II. 3 16, 



654,659. 

 Meteoric stones, 11. 501. 

 Meteorographic instru- 

 ments, II. 448. 

 Meteorological apparatus, 

 II. 448. 



Meteorological thermome- 

 ters, II. 454. 

 Meteorologische briefe, II. 



482. 

 Meteorology, I. 696, 753, 



II. 446. 

 Meteors, I. 721, 722, II. 



499, 675. 

 Meto, I. 540, 592, 604. 

 Metre, I. 106, II. 148, 152. 

 Metrologie constitutionelle, 



U. 148. 

 Metrometer, II. 279. 

 Metternicb, II. 170, 

 Metz, II. 155. 

 Mexicans, I. 97, II, 377. 

 Mezzotinto, I. 119. 

 Michael III, I. 595. 

 Micheli, II. 388. 

 Michell, I. 492, 493, 575, 



II. 399, 630. 

 Michelotti, II. 222, 823. 

 Microelectrometers, 11.434, 

 Micrometer, I, 432, PI. 28, 



II. 145. 

 Micrometer for wires, II. 



275. 

 Micrometers, II. 289, 351. 

 Micrometrical scale ,I.P1.7. 

 Microscopes, I. PI. 28, II. 



78 . . 80, 285, Double 



microscopes, I. 427. 



Simple microscopes, I. 



422. Solar microscopes, 



I. 425. 

 Slicroscopic observations, 



II. 646. 

 MicroteleBcope,II,285,287, 

 Middle ages, I. 243. 

 Mile, II. 150, 153, 155. 

 Military engines, II. 207. 

 Military mining, II. 211, 



216. 

 jVIilitary telescope, II. 990. 

 Milk, It. 180. 

 Milky way, I. 493, 496, PI. 



31, II. 338, 



Mill, 218. 

 Miller, II. 511. 

 Milli, II. 206. 

 Milligramme, II. 162. 

 Millilitrc, II. 152. 

 Millimetre, II. 152. 

 Mills, I. 232, PI. 18, II. 



167, 213, 446. 

 Millstones, II. 209, 214,21*. 

 Milner, II. 416. 

 Mina, II. 162. 

 Minasi, II. 30. 

 Mine, IT. 152, 364. 

 Mineral electricity, II. 435. 

 Mineral materials, II. 185* 

 Mineralogy, I. 725, 510. 

 Minerals, I. 723. 

 Mines, II. 249, 257, 481, 

 Miniatures, I. 95. 

 Minimum, II. 8. 

 Minimum of action, IF. 140, 



377. 

 Minimum of vision, 11. 31?. 

 Mining, I. 229, II. 211. 

 Minor scale, I. 394. 

 Minot, II. 152. 

 M. Inst. II. 111. 

 Mirage, 11. 301. 

 Mirbel, I. 728, II. 513. 

 Mirror, I. 416, PI. 27, II, 



286, 406. 

 Mirrors, I. 433, PI. 28. II. 



283, 287. 

 Miscell.inea Berolinensia, 

 II. 107. 



Miscellanea curiosa, II. 107. 



Miscellanea TaurinensiSj 

 II. 109, 



Mississippi, II. 501. 



Misterton Carr, II. 368. 



Mists, I. 711,11. 474. 



Mitchcl, II, 444, 



Mitterpaclittr, If. 867. 



Mixed gases, f. 61", II. 

 221,465. 



Mixed goods, II. 218. 



Mixed metals, II. 510. 



