INDEX. 441 



Water, eafy way to impregnate with carbonicacid gas, page 416. 

 Water, prize for the beft means of reftoring the falubrity of cor- 

 rupted and Sinking, 422. 

 Weather, Toaldo's fyftem refpefting changes in the> 120. 

 Weeds, to convert fpeedily into manure, 32. 

 Weighing infirument, defcription of an improved, 408. 

 Winter Jleep of animals and plants, 156. 

 Wood, component parts of fonie varieties of, 1 7. 

 Wood, experiments on ftaining, 54. 



Yellow, Naples, hiftory of, and methods of preparing, 278. 



EXD OF THE THIRD VOLUME. 



