184 INDEX. 



Sliding-rule, for gauging casks, report on an improved one, xvi. 



357 

 Smalt detected in refined sugar, xiv. 444< 

 Smell, organ of, peculiarly adapted for its object, ii. 6 

 Smith (Alexander), one of the mutineers of the Bounty, anecdotes 



of, vii. 257 

 (Professor), on the use of prussic acid in consumptive 



cases, ix. 410 

 Smoke, observations on some vulgar notions concerning, viii. 245 

 ■' pernicious effects of, to the inhabitants of London, in the 



seventeenth century, xii. 343. In the eighteenth century, 345 ; 



and at the present time, 346. Remedy suggested for, 347. 



Account of various expedients for consuming, 348. xix. 138] 

 Smoky chimneys, method of curing, xx. 376 

 Smut in wheat prevented, viii. 348. xvi. 156 

 Snails, account of an undescribed larva which preys on, xvii. 176 

 Snake-stones of India, analysis of, v. 124 

 Snow (coloured), notice of showers of, vii. 181. Microscopical 



observations on the red snow, 222 

 early appearance of, x, 199. Experiments on, 395. Per- 

 petual regions of, 200 



(red), of the Alps, observation on, xix, 166 



Snowden, measurement of, x. 397 



Snow-storm, luminous, account of, xix. 366 



Soap (hard), experiments on the manufacture of, ii. 444 



- notice of a new animal one, ix. 409 



a substitute for oil in setting cutting instruments, xiii. 221 



causes of the diversities of, xvi. 110. Considered with re- 

 gard to smell, 112 



potatoes a substitute for, viii. 165 



Soda, experiments with the sub-carbonate of, on nitric acid, vi. 

 252. Lampate of, 321. Prepared from alum, 363 



on the carbonate of, vii. 296 



of commerce, assay of, ix. 410 



alum, preparation and analysis of, xiii. 276 



on the relation between the crystalline form and chemical 



