G02 



INDEX. 



Mangles, 170. 



Manilius, 463. 



Mansard roof, 130, PL 13. 



Manufactures, 186. 



Map of the world, PI. 42. 



Marble, 176, 177- 



Marcellus, 45, 184, 185. 



Marigni, 312. 



Marine engines, 271, 272. 



Marine octant, PI. 35. 



Mariotte, 278, 284, 347, 348, 353, 379 ; d. 1684. 



Marquois's scales, 78, PI. 6. 



Mars, 403, 423, PI. 32. 



Marum. See Van Marum. 



Maskelyne, 392, 440, PI. 28. 



Masses, 38. 



Masts, 115. 



Mathematici veteres, 182, 183, 184, 185. 



Matrix, 94. 



Matter, 464. Impenetrability of matter, 21 . 



Matthesius, 278. 



Maupertuis, 16, 393. 



Maurolycus, 376. 



Mayer, 461, 585, 586 ; T. Mayer, b. 1723, d. 1762. 



Mazeas, 381. 



M'Culloch, PI. 41. 



Measurement of the earth, 454. 



Measurements of degrees, 436. 



Measure of force, 60. 



Measures of heat, 496. 



Measuring, 71. 



Measuring instruments, 86. 



Mechain, 84. 



Mechanical force, 60. 



Mechanical power, 245. 



Mechanics. History of mechanics, 180. 



Mediterranean, 449, 552. 



Medusa's head, 394. 



Meibomius, 316. 



Melloni, 504, 505, 506. 



Melody, 306. 



Membranes. Vibrations of membranes, 297. 



Meniscus lens, 326. 



Menkar, 395. 



Mercurial column, 204. 



Mercurial thermometer, 49?. 



Mercury, the metal, 208, 209, 477, 497, PL 39. 



Pressure of mercury, 201. 

 Mercury, the planet, 403, 422. 

 Meridian, 83, 426, PL 35. 

 Mersenne, 316; b.1588, d.1648. 

 Messenger, 158. 

 Messier, PL 31. 

 Metacentre, 202. 

 Metallic surface, 553. 

 Metals, 322, 524, 525. 

 Meteorology, 544, 586. 

 Meteors, 564, 565. 

 Meto, 428, 454. 

 Metre, 84. 

 Mexicans, 74. 

 Mezzotinto, 92. 

 Michael III., 456. 

 Michell, 391, 392, 440. 

 Micrometer, 337, PL 28. 

 Micrometrical scale, PL 7. 

 Microscopes, PL 28. Double microscopes, 334. 



Simple microscopes, 330. Solar microscopes, 



332. 



Middle ages, 186. 

 Milky way, 391, 394, PL 31. 

 Mills, 177, 178, 244, PL 18. 

 Mineralogy, 567. 

 Minerals, 565. 

 Miniatures, 73. 

 Mining, 175. 

 Minor scale, 308. 

 Mirage, 346. 

 Mirbel, 569. 

 Mirror, 325, PL 27. 

 Mirrors, 331, PL 28. 

 Mists, 555. 

 Mixed gases, 470. 

 Mixed plates, 369, PL 30. 

 Mixed pump, 254. 

 Mixture, 236. 



Mixture of colours, 344, 345. 

 Modelling, 87- 



Modulus of elasticity, 106, 288. 

 Moeris, 181. 



Moon's age, 429. 

 Moon's phases, PL 34. 



Moisture, 552. 

 Moivre. See Demoivre. 

 Momentum, 41, 45, 169, PL 2. 

 Monge, 589. 

 Monnier, 392. 



Monsoons, 549, 585, PL 42, 43. 

 Montaigne, 585. 

 Montbret, 93. 



Montgolfier, 259, 285, PL 23. 

 Montpelier, 547- 



Moon, 356, 405, 406, 419, 423, PL 33. 

 Moon as causing tides, 442. 

 Moons, 405. 

 I's age 



I's pha , 



Moon's surface, PL 34. 



Mortar, 123. 



Mortar mill, 1/7. 



Mortise, 129. 



Mosaic work, 74. 



Moses, 74. 



Motion, 13, PL 1. Composition of motion, 18. 



Confined motion, 32. Measure of motion, 60. 



Perpetual motion, 70. Quantity of motion, 



40. Resolution of motion, 19. 

 Motion of light, 321. 

 Motions of the stars, 411. 

 Mountainous countries, 556. 

 Mountains, 438, PL 38. 

 Mouths of rivers, 564. 

 Mudge, 150, 151, PL 16. 

 Multiplier of electricity, 526, PL 40. 

 Multiplying glass, 326, PL 27. 

 Mural quadrant, PL 35. 

 Murray, Lord G., 77- 

 Muscles, 98, 578. 

 Music. History of music, 315. 

 Musical characters, 93. 

 Musical chord, PL 25. 

 Musical instruments, 319. 

 Musical pen, PL 6. 

 Musical sounds, 295. 

 Musschenbroek, 117, 191, 498, 513, 585, 586, 



589; b.1692, d. 1761. 

 Myopic sight, 354. 



Nail, 119. 



Nairne, 559, PL 40. 



Nairne's machine, 534. 



Napier, 189, 458; b. 1555, d. 1622. 



Nativity of Christ, 427. 



Natural history, 565, 582, 586. 



Natural hygrometer, 554. 



Natural orders of plants, 572. 



Natural zero, 499, 500. 



Nature of light, 359. 



Nautical almanac, 461. 



Neap tide, 442. 



Nebula, 391, 392, 393. 



Nebula in Orion, 391, PL 31. 



Nebulosity, 393. 



Needle, 583. 



Negative electricity, 509. 



Neptunian theory, 563. 



Nerves, 578. 



Nettis, PL 29. 



Newcomen, 266, 279, PL 24. 



Newton, 5, 19, 22, 28, 29, 34, 36, 43, 50, 63, 190, 

 218, 279, 280, 316, 317, 323, 342, 343, 344, 359, 

 360, 362, 363, 366, 368, 369 370, 371, 377, 378, 

 379, 380, 381, 382, 388, 402, 409, 410, 411, 415, 

 430, 435, 440, 442, 449, 453, 458, 459, 460, 461, 

 466, 467, 468, 471, 472, 490, 502, 585; b. 1642, 

 d. 1727. 



Newtonian reflector, 335. 



Newtonian rules of philosophy, 12. 



Newtonian telescope, PL 28. 



Nicetas, 453, 456. 



Nicholson, 85, 151, 154, 174, 527, 588- 



Nicholson's circle, 82. 



Nickel, 532. 



Night, 417. 



Nile, 557. 



Nilometer, 454. 



Nitocris, 182. 



Nitre, 486, 501. 



Nobili, 504, 505, 540. 



Nodes, 401, PL 34. 



Nodes of the planets, PL 32. 



