INDEX. 



Tempest on the 18th Feb. 1807, ob 

 serrations on, 88, 151 



Tenon's " Memoirs on the Dentition 

 of the' Horse," 310 



Tests of certain acids and ammonia, 3 GO 



Thenard r M. his discovery of white 

 oxide of iron, 268 



Thermometers, experiments on, 373 



Threshing floors of plaster 363 



Thillaye-Platel, Anthony, on the car- 

 bonization of turf, a process by which 

 all possible advantage may be derived 

 from products hitherto neglected in 

 that operation, 131 



Tillet and Duhamel, on the effects of 

 heat on animals, 144 



Tilloch, Mr. A. letter from, on the im- 

 proved bookbinders' cutting-press, 

 336 



Torpidity of certain animals during the 

 winter season, prize questions relative 

 to, 306 



Transversals, theory of, 374 



Trees, table of the growth cf, 110 



Tremery, Mr. 25 



Trituration of mercury,/ machine for, 

 313 



Trotter, John, Esq his curvilinear saw 

 described, 334 



Turf, carbonization of, 131 



Variation and dip of the magnetic 

 needle, 169 



VapOur- baths of Russia, 143 



Vauqaelin, M. his account of the pla- 

 tina found in the silver-mines of Gua- 

 dalcanal, in Estremadura, 128 — His 

 analysis of the iron-ores of France, 

 310 



Vaux, M. Antony Alexis Cadet de, on 

 coffee, its history, properties, and the 

 mode of obtaining from it the most 

 pleasant, wholesome, and economical 

 verage, 113 



Ventenat's. " Garden of Malmaison," 

 309 



Vines, culture of in France, Si>3 

 Violet purple dyes, 182 

 Vision, experiments on, 201 

 Von Schule, J. H. 184 



W. 



Wailly, M. 191 



Waistell, Mr. C. account of his drill 

 horse-hoe for turnips, 284 



Wallerius on the filtering-stone, 190 



Wasp, ichneumon, interesting economy 

 of the, 302 



Waste lands, improvement of, 74 



Water of the sea ; observations on the 

 soda, magnesia, and lime, contained 

 in it, 72 



Waugh, Mr. John, 178 



Weaving frame for ribbed stockings, 369 



White oxirle of iron, examination of, 

 268 



Wilson, Mr. Charles, his method cf 

 cuiing damp walls, by the application 

 of a newly-' rented composition, 141 



Wines of Champagne, management of, 

 353 



WireGaus?. 365 



Wollaston, .Jr. W. H. his camera 1«. 

 cida described, 1, 31£— His investi- 

 gation respecting horizoatal refrac- 

 tion, 153, 156 



Writing ink, 180 



W. W. letter from, on the means of 

 destroying the insects which infest 

 houses in large towns, 38 



W. X V description of a machine for 

 triturating quicksilver and combining 

 it with other substances, a Id 



Young, Dr. on the adhesion of bodies 

 to the surface of fluids, 169 



Zinc, on, 337, et s6q. 



ENtt OF THE SEVENTEENTH "VOLUME, 



Printed by W. Stratford, Crown- Court, Temple-Bat 



