vm. 



CONTENTS. 



Vegetation, the general powers which 

 influence it — Gravitation — Cohesion 

 — ChemicalAttraction— Heat— Light 

 —Electricity— Ponderable Substances 

 — Elements of Matter, particularly 

 those found in Vegetables — Laws of 

 their Combinations and Arrange 

 ments ; from page 48 to 95, in arti 

 cle Agricultural Chemistry. 



Vegetable substances, the most essen 

 tial constituents of . 179, 180, 181 



Vines, method of training 



Vinegar and wine rendered transparent 



Vinegar used to counteract lime 



Walls, method to preserve 

 Wasps, method to destroy 

 Water, salt or hard, how prepared fo 



washing 

 Watches, valuable metal for pivots to 



move in . 

 Water, components of 



182 

 52 

 56 



85 



192 

 56 



66 



102 

 94 



Wax . . . . .126 



Wheat, remarks on smut . .11 



Wheat, Batchelor's experiments on 



smut in . . . . 186 



Wheat, blight in . . 13, 25 



Wheat, experiments on, for seed . 91 



Wheat, kiln dried, for seed . . 98 



Wheels, apparatus to prevent accidents 



in carriages . . . .50 



Wheels, remarks upon the form of teeth 



or cogs of . . . . 189 



White-wash, process to make, &c. 15, 48 

 Whooping cough, remedy for . 87, 101 



Wires, method to draw extremely fine 42 

 Wood and other fuel, remarks on . 84 

 Wood, remarks on the decay of, &c. 



42, 136, 192 

 Woody fibre . . . .134 



Zinc . . . . .77 



Zoological specimens, method to pre- 

 serve . . . .43 



