INDEX. S 



Bowdoin college, district of J/«i?:e, longitude of, VI, 271, 297 — latitude ot, 

 273, 297. — observations made there on the solar eclipse of June 16th, 

 1806, 275. 



Bricks, on those used in the U. States, VI, 384. 



Brick-dust, use of in mortar, VI, 385. 



Broxvn, Samuel, M. D. his description of a nitrous cave on Crooked Creel . 

 Ky. with remarks and observations on gun-powder and nitre, VI,23.">. 



Buffaloes, very abundant in Louisiana, VI, 70. 



Building in India, on the principles and practice of, VI, 376. — materials used 

 for, 378.' — thickness of the walls, 379. — exterior and interior plaistering, 



379. — shell lime, how made and used, 379 manner of constructing 



the roof, 380. — manner of constructing the terrace, 380. — result of ex- 

 periments made on the weight and strength of timber used, 382. — va- 

 rious observations, 384. 



Bull, Colonel, his notes concerning a vegetable found under ground, V, 160. 



Boundary of the U. S. and His Catholic Majesty, astronomical and thermo- 

 metrical observations made on, V, 203 to 311. — first point fixed, 209. 



Thompson's Creek, 217 lat. 228. — long. 271. — Mobile river, 229 



long. 241. — lat. 242. — riverCoenecuch, 244. — lat. 247 Chattahocha or 



Apalachicola river, 249 long. 255. — lat. 256,258 Flint river, 259. 



long. 271. — lat. 272 Point Peter to determine St. Mary's, 276.. — long. 



284. — lat. 285 Amelia island, 287 Cumberland island, 287. — St. 



Mary's, 287. — lat. 296 to 300 long. 310. 



Carbonic acid gas. See Air, fixed. 



Cathrall, Dr. Isaac, his memoir on the analysis of black vomit, V, 117. 



Cave, nitrous, description of one on Crooked creek in Kentucky, VI, 236. 

 its temperature, 237. — vapours condensed upon its sides, 238. — na- 

 ture of the earth, 238. — signs by which to judge of the quantity of nitre 

 contained in the earth, 239. 



Cement. See Mortar. 



Charcoal, action of the vapour of spirit of nitre on, V, 2.— of marine acid, 

 3. — experiments made with in the nitrous acid, 4. — other experiments 

 on, 34. 



of bones, action of the vapour of spirit of nitre on, V, 2. 



Chart, nauticai. See Nautical chart. 



Chattahocha, astronomical observations made near the mouth of, V, 199. — 

 longitude, 202 latitude, 199. 



Chrome, not contained in the meteoric stones of Weston, Conn. VI, 345. 



Cincinnati, geographical position of, VI, 159. — See also Antiquities. 



Cinder, finery, experiments on, V, 34. 



Circular. See Committee. 



Clay, Joseph, M. A. P. S. his observations on the figure of the earth, V, 312. 

 his demonstration of a geometrical theorem, VI, 201. 



Climate, on that of the Mississippi territory, VI, 9 — 23. — general remarks on 

 the same, 48 — 55. — See also Mississippi territory and Dunbar. 



Cloud, Joseph, an officer in the mint of the U. S. his account of experiments 

 made on palladium, VI, 407— 411. 



