•480 



■Index. 



.i— on a remarkable petrefaction, 38S 

 on a remarkable instance of sponta- 

 neous combustion, 390 — on urea, 390 

 — on lacciu, 399^n the needlestone 



^ from Kilpatrick, 401. 



Thomsonite, on, 193. 



Tottenhoe stone, on, 59. 



Transactions of the Royal Society for 

 1819, Part 11. 50— for 1819, Part 

 111.51— for 18'iO,PartI. 379. 



Trimmer, Mr. on the climate of New 

 South Wales, 278. 



U. 



tJmbellifeiae, on, 117. 



Urea, on, 390. 



Urethra, human, on, 53. 



Urinary calculus, on, 96 — new mode of 



extracting, proposed, 55, 268. 

 "Urine of the sow, on, 96. 



y. 



Vase, metallic, Mr. Thomason's, on, 



229. 

 Venas, on the planet, 41T. 

 Termes, on, 107. 

 Vinegar from wood, on, 68, 

 Vogel, M. on muriate of potash in sea 



salt, 226— on benzoic acid, 227. 



W. 



Wales, New South, on the climate of, 

 278. 



Water, on the compressibility of, 149. 



AVavellite, on, 99. 



Weaver, Mr. on the geology of the en- 

 virons of Portrush, 57. 



Wire gauze, on the impermeability of, 

 to flame, 424. . 



WoUaston, Dr. W. H. on sounds inau- 

 dible by certain ears, 145 — election 

 of, as President of the Royal Society, 

 145 — on (he method of cutting rock 

 crystal for micrometers, 386. 



Rev. F. H. on the height of 



Snowdon, 146. 



Yeast, on, as a manure, 307 — ou the 



chemical composition of, 307. 

 Yellow, new m«thod of dying, 102. 



Zeolite, fibrous, on 148. 

 Zircon, on, 98. 

 Zoology, on, 104. 



EJTD OF VOLUME XVI. 





C. Baldwin, Piinter, 

 Ifew Bridge-Street, London. 



