270 INDEX. 
Gilding the edges of tea-cups, 173 
on wood, 172 
, ancient mode of, 172 
wax, how made, and use of, 172 
Glass, how made, 55 
bottles, how made, 55 
, window and plate, how made, 55, 56 
, annealing of, the use of, 56 
, how to etch on, 120 
, Muscovy. See Mica. 
Glauber salt, description of, how obtained, and uses of, 123 
t ' , pleasing experiment with, 134 
Glimmer. See Mica. 
Giucine, 16 
Gneiss, 226 
Gold, description and properties of, 167, 168 
, how obtained from mines in America and Europe, 166 
, found in Ireland and Scotland, 168, 169 
, mode of extracting from the ore, 169 
, value and uses of, 170 
, coinage or sterling gold ; and gold of the new standard, 170 
, description of the stamps on gold plate, 170 
-, how alloyed, 170 
, coinage gold of Portugal, America, France, Spain, Holland, 
and Morocco, 170 
-, trinket and pale gold, how alloyed, 170 
, ductility and tenacity of, 170 
leaf, how beaten, 171 
wire, 173 
thread and lace, what they are, 173 
powder for painting, how made, 173 
, Dutch, how made, 187 
Gold-beaters' skin, how made, and uses of, 171 
Granite, description and uses of, 225 
, various kinds of, 225 
Goulard, of what made, 207 
Grey-wacka, 232 
Grindstones, of what made, 234 
Gritstone, description and uses of, 233 
Gun-barrels, how browned, 141 
Gun-flints, how made, and how to choose, 54 
Gunpowder, how made, 137 
Gypsum. See Alabaster. 
- , fibrous, description and uses of, 118 
H. 
Hair, pernicious effects of preparations to colour the, 181 
Heliotrope. See Bloodstone. 
Hone, or whetslate, description and use of, 80 
