INDEX. 



463 



Regnault, M., his analysiu of the water 

 of the Nile, 449 



Regulating valve for a ga« establish- 

 ment, 135 



Rendu, Abbe, on the chemical powers 

 of magnetism, 429 



Renwick, Mr., his account of steam- 

 boats navigating the Hudson, 1 



Reynolds, Dr., 246 



Rhododendron, mountain, of India, 1C5 



Rigatelli, Bartholomeo, discovery of, 222 



Ritter, secondary piles of, 200 



Rock crystal, alteration of weight in, 425 



Rose, C. B., Esq., on the organic re- 

 mains of the diluvium in Norfolk, 308 



Mr., on hypo-phosphites, 206 



■ - M. Henry, his preparation of 

 titanic acid, 439 



Rose tree, on the sap of it, 146 



Ruysch, 23« 



Sabine, Captain, letter from Mr. Ren- 

 wick to him, 1 

 St. Christopher, island of, geological and 

 geographical sketch of,'250 



St. Vincent, M., on the maturation of 

 wine, 451 



Salad, new kind of, 450 



Sjiline compounds, obtained by heat and 

 fusion, 436 



Salt, common, on the coast of Chili, 233 



density of, solutions of, 423 



Salts, argentiferous, crystallization of, 

 440 



absorbent powers of, 441 



Sandusky Bay, 368 



Sap of the rose-tree, its characteristics, 

 147 



Savart, M., experiments of, 205 



Schleiermacher, M., discovery of, 341 



Schoolcraft, Mr., 381 



Scotland, on the poor-laws of, 161 



Screws, friction of, 426 



Sea-water, efficacy of, 99 



Seeds, method of preserving, 449 



preparation of, by chlorine, ib. 



Selenium, minerals containing, 232 



Sesostris, Egyptian MS. relating to his 

 history, 454 



Sharp, Mr., on heating hot-houses, 164 



Sheibani, grandson of Genghis Khan, 

 340 



Shepard, Mr., experiments by, 231 



Ships, on malaria in, 38 



remarks on the stowage and 



Silver, its separation from copper, 213 



chloride of, 216 



nitrate of, ib. 



precipitation of, eflFect of mag- 

 netism on, 429 



volatilization of, 440 



Silvic acid, 446 



Slates, hasten the maturation of fruits, 



450 

 Sleep, necessity of, 251 

 Smyth, Capt., health of his crew, 



65, 72 

 Soemmerring, M., 223 



on the propagation of sound, 



424 



Solids, change in the position of par- 

 ticles in, 199 



Somnambulists, or sleep-walkers, 253 



Souberan, M., on the preparation of 

 iodine, 203 



on nitre and sal-ammoniac, 



209 



Sound, on the velocity of, 124, 424 



propagation of, ib. 



Sowerby, Messrs., their mineral con- 

 chology, 308 



Spheroid, longitudes on a, 418 



Sprengel, M., on the exhalation of chlo- 

 rine by maritime plants, 450 



Stars, fixed, lunar occultations of the, 

 192, 418 



method of computing their 



longitude, 407 



Steam-boats navigating the Hudson, 

 account of, 1 



Steel, hardening of, 426 



Stevens, Mr. Robert, on steam navi- 

 gation, 3 



improvements of, 8 



sailing of, 320 



of war, 



force of, 108 



observations on the 



Shriver, Mr., 364 



Silica and potassa, new compound of, 435 



SUliraan, Professor, 231 



Stomach, human, its wonderful power, 



237 

 Stowage and sailing of ships and vessels, 



320 

 Susquehannah, on navigating the, 26 

 Sutherland, junction of granite and 



sandstone in, 274 

 Symes, Col., on the ancient Egyptians, 



144 

 Synocha, or inflammatory fever, 57 



Tallow, on the fusion of, 197 



Tan, not essential, to cultivate pine- ap- 

 ples, 167 



Tannin, preparation of, 220 



Taylor, John, curious book by, 239 



Temperature of the sea, 86 



Temple, newly-discovered at Cadachio. 

 385 



Temple, Sir William, 243 



Terrechetteree, walls of, 144 



Thomas, D., travels of, 374 



