INDEX. 



723 



Propagation of heat in so- 

 lids, 11. 405. 



Propagation of impulses, II. 

 618. 



Propagation of liglit, II. 

 320. 



Propagation of motion, II. 

 139. 



Propagation of sound, II. 

 68, 264. 



Propeller, II. 243. 



Proper motions of the stars, 



I. 493, II. 330. 

 Properties of curres, II. 



22, 120. 

 Properties of matter, I. 



605, 660, II. ST7, 60r. 

 Prop or store, I. 71, PI. 5, 



II. 1.15, 212. 

 Proportion, II. 114. 

 Proportional compasses, I. 



103, PI. 6, II. 144, 2ir, 



218. 

 Proportional quantities, II. 



3. 

 Proportional scale, II. 142. 

 Proportions of wheels, II. 



183. 

 Props of reservoirs, I. 313. 

 Prosperin, I. 513, II. 337. 

 Protagorides, I. 746. 

 Pi-otractors, II. 115. 

 Proust, II. 674, 675. 

 Provence, 11.502. 

 Provinzialblaetter, TI. 474. 

 Pruning trees, II. 208. 

 Prussian measures, II. 148. 

 Pt ilemaeus, II. 324. 

 Ptolemaic system, I. PI. 



31. 

 Ptolemy, I. 473, 483, 495, 



504, 530, ,590, 591, 594, 



595, 604, II. 349. Fl. 



160. 

 Ptolemy Philadelphus, I. 



592. 

 Ptolemy Soter, I. 592. 



Pugh, II. 451, 463. 

 Pullies, I. 68, PI. 4, 11. 40, 



54, 138, 170, 172, 197, 



200. 

 Pulling up trees, II. 199. 

 Pulsation of heat, II. 40j. 

 Pulsation of the air, II. 



407. 

 Pulse, I. 291. 

 Pulverisation, II. 213. 

 Pump, I. 331, II. 166. ■• 

 Pump capstan, II. 251. 

 Pump for fires, II, 413. 

 Pumping, I. 132, II. 165. 

 Pump rods, II. 183, 1f)9. 

 Pumps, I. Pi. 23, II. 177, 



236, 247. 

 Pupil, I. 451, II. 530. 

 Purflcet, 11. 485. 

 Purifying air, II. 252. 

 Puschkin, II. 435. 

 Putrescent wood, II. 293. 

 Pyramid, 11. 17, 45. 

 Pyramidical prows, II. 



226. 

 Pyramidoidal solids, ' II. 



20. 

 Pyramids, I. 593. 

 Pyrenees, II. 366, 367, 



447. 



Pyrites, II. 438. 

 Pyrometer for a bridge, II. 



176. 

 Pyrometers, I. 646, II. 



385. 

 Pythagoras, I. 236, 237, 



253, 403,404, 407,592, 



598, 604, 744, 756, 11. 



507. B. 568, D. 497. 



B.C. 

 Pytliagorcans, II. 551. 

 Pythagorean system, I. PI. 



38. 

 Quadrangular system of 



wires, IT. 352. 

 Quadrant, I. 105, II. 76, 



302, 350. 



Quadrant electromttcr, I. 



683. 

 Quadrant of altitude, II. 



375, 

 Quadrant pump, II. 248. 

 Quadrants, I. 541, PI. 35. 



II. 349. 

 Quadratic equations, II. 6. 

 Quadratrix of the hyper- 

 bola, 11.123. 

 Quadrature of curves, 11. 



120. 

 Quadrature of the circle, 



II. 124. 

 Quantity, 11. 1, 112,140. 

 Quanz, II. 571, 572. 

 Quarries under Paris, II. 



211. 

 Quarry, II. 213. 

 Quart, II. 150, 151. 

 Quarter, I. 124, II. 150, 



151. 

 Quays, I. 315. 

 Queen post, I. 199, PI. 12. 

 Querns, II. 2l!5. 

 QuicksilvcT, II. 380, 408. 

 Quiescent space, I. 20, II. 



9, 27. 

 Q.uins, II. 217. 

 Quin, II. 231. 

 Quinary arithrhetic, II. 



116. 

 Raccolta di autori chi 



trattano del nioto dcll' 



acque, II. 222. Nuova 



raccolta, II. 222. 

 Rucks, II. 181, 183. 

 Rackstrow, II. 324. 

 Radial focus, II. 73. 

 Radial image, It. 7B. 

 Radiant heat, II. 322, 



406. 

 Radiation of heat, I. 636, 



II, 681. 

 Radiations of light, II. 



527. 

 Radical quantities, 11. 115. 



Radius, II. 9. 



Radius of curvature, II. 



22, 120. 

 Rafn, II. 514. 

 Rafter, I. 147, II. 179. 

 Rafters in equilibrium, I, 



PI. 11. 

 Rag pump, II. 249. 

 Rags, II. 190. 

 Raia torpedo, II. 435. 

 Railing, II. 180. 

 Rail roads, II. 204. 

 Rain, I. 712, 713,11, 174, 



216,465,475,483. 

 Rainbows, I. 442, 470, PI. 



29, 30, It. 81, 303, 308, 



316, 643. 

 Rain gages, II. 476. 

 Ruin of ashes, II. 495. 

 Rain water, II. 475. 

 Rainy winds, II. 476. 

 Raisin, II. 184. 

 Raising a nap, II. 180. 

 Raising ballast, II. 199. 

 Raising boats, II. 200. 

 Raising earth, II. 199. 

 Raising flour, IT. 199. 

 Raising ore, 11. 200. 

 Raising ships, II. 199, 243. 

 Raising stones, II. 199. 

 Raising water, II. 247. 

 Raising weights, I. 203,11. 



196. 

 Rameau, II. 272. 

 Ramelli, I. 247, 334, PI. 



23, II. 124. 

 Rammelsberg, I. 235. 

 Ramond, II, 447. 

 Rams, n. 205. 

 Ramsden, I. i05, 112, 125, 



431, 433, 480, 602, 604, 

 PI. 7, 8, 28, II. 145, 155, 

 231, 285,350,573, 584, 

 585, 587, 597. B. 1730, 

 D. 1800. 

 Ramsden's application of a 

 planoconvex lens, II. 288. , 



