INDEX. 279 
Water, Sedlitz, 255 
, Epsom, 256 
, Seltzer, 256 
, Tunbridge, 257 
, Spa, 258 
~ , Pyrmont, 259 
, Cheltenham, 260 
, Brighton chalybeate, 261 
- , Harrowgate, 262 
-r , Moffat, 264 
Whet-slate, description and uses of, 80 
Whiting, of what made, 100 
Window glass, how made, 55 
Wine, antimonial, how prepared, and use, 217 
, how to detect the adulteration of, 207 
Woodstone, description and uses of, 51 
Writing slates, how made, 78 
Yttria, 16 
Z. 
affre, what, how made, and uses of, 221 
Zinc, whence obtained, and how extracted from the ore, 209 
, uses and properties of, 210 
, oxide of, used as paint, 211 
.., white, how prepared, 141 
Zircon, 29 
END OF VOL. I. 
C. Kali! win, Print r, 
PW Bridze-street, Lomlois, 
