5^4 



N D 



X. 



w. 



Wadftrom, Dr. ii. 456, 15J 



Wagenfeil, Dr. i. 75 



Wainlcot Oak, 11.335 



Walckier's, his Silk Machine for Eleflricity, 



ii. 4JO 

 Wales, North, Geological Obfervations on, 



i. tto 

 Walker, Mr. Richard, on Artificial Cold, i. 



497 



. Steel, i. 576 



Wallace, William, Geometrical Porifms, ii. 



i9i 



Wallerius, i. 14. ii. 204 



Wallingfort, his ancient Watch, ii. 51 



Ward, li. 84. 



Wargentin, ii. 116, izS 



Warrens, i. 359 



Watches, Obfervations on the Efcapements 

 of, i. 419. On the maintaining Power 

 of, ii. 49. Efcapements for, ii. 50 



Water, Dccompofition of by tleftrie Dif- 

 charges, i. 141, 349. Etfefts of in equa- 

 lising the Temperature nf the Globe, i. 



■ 567. Spouts, account of the Appearance 

 of, by M. Michaud, i. 577. Circular 

 Eddies or Whirls of, ii. 8li. General 

 Fafls relative to its Mo'ion by L. dc 

 Vinci, ii. 88. Upwards of Two Gall >ns 

 made to boil by Friftion, ii. 113. Conge- 

 lation o.f, ii. 163. Diftilled for Chemical 

 Experiments, economical Mode of obtain- 

 ing, ii. 209. Water, eafy Mode of pu- 

 rifying, by Barytes, ii. 113. Expence 

 of as a firft Mover, ii. 459. Mills, Power 

 of, ii. 464. Wheels, Bucket and Breaft, 

 compared, ii. 497, 544 



Watfon, Dr. i. 192, 494, 496, 575. Major, 



ii. 95. Mr. White, li. 249 

 Watt, Mr. i. 424. ii. 46 

 Watte, John, ii. 96 



Weather Inftrument, Laiowflti's New, ii. 1 1 



Weaver, Mr. ii. l^^ 



Wedgwood, Thomas, i. 363 



■ I Mr. on Sydney Earth, L 404. 



ii. TS 

 Weights, Table of the new French, i. 199. 



Table of French and Comparifon with 



Englilh, i. 331. 

 Welding of Caft-fteel with Iron, i. 575 

 Welte, i. 143 

 Welter, Cit. i. 329 

 Well, artificial, overflowing of, by VuHiamy, 



ii. 176 

 Welther, Cit. his Procefs for making Car- 

 bonate '.f Potafli, ii. 369 

 Wenzel, i. 100. ii. 340 

 Werner, i. 537 

 Weftrumb, Mr.i. 144 

 Wheat, Prices of, at different Periods, ii. 284 

 Wheels without Co,;s, i. 329. Underfliot 



and Overfhot compared, li. 464 

 Whiiftone, Caufes of the ftony Charafter 



of, ii. 285 

 White, Charles, Efq. F.R.S. Account of 



three valuable Timber Trees, ii. 190, 333 

 Whitehurft, Mr. John, F.R.S. i. 57, 65. 



ii. 95 

 Whitworth, ii. 95 

 Wick of Candles and Lamps, i. 68 

 Wicks, economical, i. 69 

 Widmanftal, ii. 84 

 Widenmann, ii. 204, 248 

 Wilcke, i. 396 

 Wilkins, Bi'hop, his perpetu?! Motion, i. 



376. ii. 191. Account of his Philofophi- 



cal Language, ii. 346 

 Wilkinfon, General, ii. 315 

 Williams, Lieut. Col. i. 150, 198 

 Willis, i. 363 

 : Wilfon, Profeffor, on Multiplying engraved 

 Plates, ii. 60 



Wilfon, Patrick, F.R.S. on a felf-moving 



Lamp, ii. 167, 192 

 Winds, Coid, iffuiog out of the Earth, i, 



i»9. 233 

 Wind as a lift Mover, ii. 459, 461 Weft. 



erly in LtUnd, have of kte Years blowa 



with uncommon Violence, ii. 382 

 Wire-cl jrh ror Lantho ns, ii. 412. Fufed 



by Eleftacity, ii. 526. Ufed as a Wa- 



ther Inftrument, ii. 1 1 

 Wittman, Dr. i. 286 

 Wood, Bituminous, ii. 206. Engraving on, 



Woodward, Dr. ii. 477 



Wool, Soap of, i. 40 



Worceftcr, Marquis of, i. 376. Scheme for 

 Perpetual Motion, i. 377. DeTcription of 

 his Steiitii Enj;ine, i. 419. ii. 228 



World, Syftem of the, by Laplace, ii. 39 



Worfley, Sir Richard, ii. 95 



Woulfe, Mr. ii. 14J, 319 



Wounds, Effeft of Galvanic Irritation on, i. 

 Z56 



Xerxes, ii. 319 



Y. 



Yeaft, fubllitute for in making Bread, i. 167- 



ii- 357 

 Yelin, ii. 8 



Yellow, Procefs for dying Silk, i. gz 

 Yeoman, Mr. ii. 95 

 York, Duke of, i. 328 

 Young, Mr. Thomas, on Vi lion, i. 305 

 — Sir William, i. 190 



Z. 



Zebra, curious Fafts refpefting 'he Propa* 



gation of, ii. 267 

 Zoonic Acid, ii. 367 



ERRATA IN VOL. II. 



Page. Line. 



29 .3 from the bottom, fdtas, read aa 

 46 13 il'ter /--^? 424, infcrt fol. L 



The pidit: of Apparams feould be 

 numbered II. 

 14'S 18 ioT periodical, read fynodic 



19 for t d. 8 h. 26 J*, m. read i d. 18 h. 

 28 m. 36 s. 

 t;4 37 for Hot qutie-^n'', r^^d upwards of 



-30" 

 —I 40 for 97I lijy'i »/<•, read iiTand^-j\ 



day's ufe reJpeRi'vely 

 — vlt., for X read of- 

 125 11 What is faid of tie firfl and fecond 

 Jateiliies, refps/fting the annual 



Page. Line. 



error, is exaftly true, only with 

 refpeft to I he fecond :-~x\\e error 

 of the firfi being minus, and in a 

 (mailer proportion. 



264 — In fome copies, the figures in the 

 Mote have flipped, and give an 

 imperfeft imprelfion. Read /Af 

 amount of Gold coined between ibe 

 years 1762 and 1772 both inclu- 

 Ji've, -was 8,157,203/. 1 5J. dd. 

 and bet-ween 1782 nndljgz, both 

 inclufive, -was 19,675,666/. 14). 

 kd. andbetween 1773 and 1777, 

 both inclufive, was «9?59',833/. 



Page. Line. 



IS. And in the fourth line from 

 the bottom, read reckoned at J 

 (i}alfj per cent. 



275 8 read the pipe A B F E 



439 8 from the bottom for_/?«/ir read /i/flW 



488 14 from the bottom, erafe the full ftop 

 after the word polijbed, and add 

 a ftill ttop after Unpi) , 



490 *j for offered, re.id afforded 



— 3 from the (■■ ottom for K B read K D 



491 12 read interi r part of the tube 



— 3 from the i.Jttora for D D F C read 



DB70 

 5 58 6 ioT £iringucci»} tQid Beriitguccius, 



