INDEX. 



491 



Latent heat discovered by Black, 12. 

 Lavoisier, S. L., birth, 292. 



early labours, 293. 



publishes his ' Opuscules Phy- 

 siques,' 298. 



experiments with diamond, 300. 



his claim to the discovery of oxy- 

 gen, 302. 



researches on combustion, 309. 



his claims to the discovery of the 

 composition of water, 312. 



researches on respiration, 319. 



labours in public affairs, 321. 



accused and guillotined, 324. 



summary of his discoveries, 326. 

 L'Espinasse, Mdlle., History of, 436. 

 Loans, national, 260. 

 Lotteries as a source of revenue, 251. 



M'Culloch on corn, 237. 



Malthus on corn, 237. 



Malt tax, 235. 



Mathematics, progress of, 123. 



Mechanics' Institutes, rise of, 35. 



Mercantile system, 225. 

 peculiarities of, 225. 

 by means of restrictions on exports 

 of these metals, as well as by 

 restraints on the imports of fo- 

 reign commodities which require 

 payments in gold, 226. 

 tends to increase foreign commerce 

 and to undervalue nome trade, 

 226 



exchange of suitable products, 231, 

 aims at accumulations of gold and 

 silver, 236. 



Metals, precious, restrictions on, 226. 



Methuen treaty, 238. 



Mexico, progress of, 241. 



Money Prices what, 207. 



Montesquieu's opinion of Black, 4. 



Muriatic acid, composition of, disco- 

 vered by Davy, 118. 



Newcomen's improvements on the 

 steam engine, 29. 



Nitrogen gas discovered by Priestley, 

 75. 3 



Nitrous acid, composition of, dis- 

 covered by Cavendish, 97. 



North's, Sir David, discourses, 169. 



Observation of the transit of Venus 



at Otaheite, 347. 

 Oxygen gas discovered by Priestley,76 



Paper money in America, 232. 

 Papin's improvements on the steam 



engine, 28. 

 Pappus's mathematical collections, 



127. 



Pin-making, 208. 

 Poll tax, 257. 



Porisms, investigations on, by Sim- 

 son, 147. 



Portugal, treaty with, 238. 

 Post-office as a source of revenue, 



251. 



Potassium discovered by Davy, 116. 

 Priestley, Dr., birth, 69. 

 education, 70. 

 various writings, 73. 

 discovers nitrogen gas, 75. 



oxgen gas, 70. 

 merits of, 78. 



settles at Birmingham, 81. 

 engages in religious controversies, 



82. 



house destroyed by a mob, 83. 

 withdraws to America, 84. 

 death and character, 89. 

 letter to Sir J. Banks, 374. 

 Principle of D'Alembert, 396. 

 Problem of the three bodies, 411. 

 Prohibition of exportation of precious 



metals, 226. 

 Property tax, 255. 

 objectional, 256. 



Quesnay's, Dr., Works, 173. 

 reviewed, 264. 



Rent, 



theory of, 214, 217. 



Anderson's theory of, 237. 

 Restriction and protection defined, 



227. 

 Restrictions on labour, 216. 



on trade, 226 

 Retaliation in trade justifiable, 228. 



author's own counsels on, 229. 

 Roebuck, Dr., partner of Watt, 41. 

 Royal Society, dissensions in, 359. 



Safety lamp invented by Davy, 118. 

 Seignorage discussed, 239. 

 Silver, prices of, 218. 

 Simson, Robert, birth, 130. 



early pursuits, 131. 



appointed professor of mathema- 

 tics at Glasgow, 134. 



mathematical investigations, 136. 



