INDEX. 



Safr*, deliquefeent, table of, In the order 



of their attraction, 242 

 Sand, an ufeful afiiilaut to gun-powder in 



biafting rocks, &c. 41, 60, 171 

 Sap of trees during winter, 233, 308.— 



Experiments on, 234 

 Saverein the engineer, notice of his death, 



»43 

 Saw-makers, their method of hardening 



fteel, 63 

 Scientific News ; for Auguft, 58. — For 

 September, 142. — For Qdtober, 220. 

 —For November, 296 

 Sea, temperature of, 220. — At great depths 



eternally frozen, ib. 

 Seguin, 250. — Q» the oil ufed by Cur- 

 riers, 220 

 Sheepfold, improved, 192.— Advantages 

 of, ib.— Method of placing on hilly 

 grounds, 193 

 Sigena, account of a meteoric (lone, 



which fell there, 2 

 Silliman, Benj. Efq. 305 

 Singer, Mr. on an improved mode of ap- 

 plying the points in eleclrical machines, 

 103 '. 

 Six's Thermometer, objections tc it, 216 

 Slaughter houfes, 125 ' - 



Smeaton, Mr. 10, 13 ) •« 



Smut in corn, 148 < 



Soils, analyfis of, 81. — Subftances found 

 in, ib. — Inftr '.ments requifite for, 83, 

 96. — Mode of Hefting, 83. — Afcer- 

 taining their fpecific gravity, 84. — 

 Phyfical prOperti:s, ib. — Quantity of 

 water abforbed by, 85. — Separation of 

 extraneous matters from, 85, 86. — 

 Examination of 86, &c— Products, 

 91. — Simplification of the analyfis, 

 92.— Improvement of, 93. — Difference 

 of under different climates, 94. — Com- 

 pofition of, ib. — Rendered fertile by 

 changing the composition of the earthy 

 parts, 96 

 Sonini's Journal, extract from, 276 

 Springs, method of making, 63 



Starch, a powder refembling, obtained 

 from elecampane root, 97. — Manufac- 

 tories, J24 



Starck, N. D. Efq. his compafles for 

 taking bearings in a chart defcribed, 

 224 



Staunton, Srr G. his embaffy to China, 

 extract from the account of, 273 



Steam applied to afilft the refining of iron, 

 37. — Its invifible emifiion into the air, 

 »> 47 



Steam-engine applied to carriages, 1. — 

 A portable one, 174.— Improvement* 

 in, 294, 316 



Steel, blued, properties of, 63 



Steeping hemp, 61. — Grain to prevent 

 fmut, 149 



Sceinacher, M. on carbonate of potafh, 

 *74 



Steward, Profeffor, 8 



Stones, meteoric, on, 2. — Shower of, 

 3. — Analyfis of, 3, &c. — New hypo- 

 thecs refpedting their origin, 6 



Straw, obfervations made on difeafed, 151 



Succulent plants, prefervation of, 64 



Sugar, new mode of obtaining from beet- 

 root, 259 



Sulphate of lead, fee lead 



Sulphuric acid, manufactories of, 126 



Syphon, inverted, Mr. Clofe's method 

 of xaifing water by means of, |6 



T. 



Tan, artificial, prep^d from coal, djc. 



3*7 



Taffaert, M. 105 



Telefcopes, experiments for afcertaining 



how they enable the fpedator to dif- 



tinguifk the real diameter of objects, 



285 

 Teffier, 124 



Theatre in the Crimea, 302 

 Thenard, M. on milk and butter, 218. 



—On bile, 269 

 Thermometers for regiftering temperatures 



in the abfencc of the obferver, 215 



Thomas 



