492 
Physiology, 74,142 
Plants. Anatomy of, 276, 390, 466 
Pompeia. Discoveries in, | 143 
Popuiar opinions often correct, S45 
Percupines do shoot theirsquills at 
enemies, ‘ 285 
Poiass. Components of, 180 
Protowide of silver. Components og 
Wi 
Prize question, zi 145 
Publications, net's 69, 225, S95 
Reader on light, 418 
Refractive power of several sub- 
stances, 289 
Rocks. On, 16, 91 
Royal Society, 69, 7S, 392, 398, 479 
Rumford on heat by combustion,296 
Saint Hilaire on germination, 208 
Salt, Fesuvian, On, 425 
Sea. Gaining on the land, 58 
Seciograph, the, described, 401 
Seeds. On germination of, 208 
Sight. On, $30 
Silicaled fluoric acid. On, 408 
Singeron electricity, 36, 26], $17 
Slate. On stratification of, 223 
Smith’s geological map, 58 
Smithson on ulmin, 
Smithson on Vesuvian salt, 425 
Societies, learned, 69, 73,592, 393,479 
Suda, Components of, 181 
Si. Michael's snount, Structure of, 429 
tromeyer on arragonite, 25, 
Sirontianite. On, 25 
Subacelale of lead, to form, 212 
Sulphates, Components of, 179 
Sulphur combined with hydrogen, 39 
Suiphurets. Components of, 140, 177 
Sulphuretted hydrogen. Analysed,140 
Sulphuric acid. Lake of, 127. 182 
INDEX, 
Supercarbonate of soda, Components 
of, | 872 
Surgical case, 60 
Syphons capillary. Exper.on, 202 
Tallow. Heat evolved in burning,297 
Taunton. Surgical case, — 60 
Tea. Onmaking, 345 
Time-keepers. Utility of, © 241 
Travels in America, Lee oT 
Tungsite acid. Components of, 38% 
Ulmin, On, 204 
Orinary calculi. On medicines against, 
347 
Urine. Singular use of, 314; in- 
fluence of acids on composition 
of, 347 
Vaccine establishment, Report of, 27,: 
132 
Waiker (E.) on electricity, 161, 215, 
‘ 485 
on chemical philosophy, 367 
Walker (R-) on freezing aleohol,117, 
on refrigeration, 424 
Ware on sight. : 330, $48 
Water. Analyses of 139, 270; on 
oxide of ammonium, — 270° 
Webster's geology of the Isleef Wight, 
395, 397 
Werner’s transition rocks. On, 15, 91 
Winne’s case of hydrophobia, 194 
Wollaston on crystallization, 61; on 
freezing at a distance, 282; on 
periscopic spectacles, 387; instru- 
ment for chemical equivalents, 
398. 
Weod. Heat from, 299 
Young on changeable colours and 
glories, 292 
Zoslogys 74,142 
t 
END OF THE FORTY-SECOND VOLUME, 
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Printed ly Richard and Arthur Taylor, Shoe Lane, Londow 
