272 INDEX. 
Lead, red or minium, how manufactured, and uses of, 206 
, sugar of, 207 
, how detected in wine, &c. 207 
, pleasing experiment with, 207 
Lemnian earth, how obtained and use of, 86 
Lias, use of for multiplying drawings, 116 
Lime, 17 ; how burnt, and various uses of, 97 
water, how made, 98 
, carbonat of, 99 
, sulphat of, 117 
, fluatof, 119 
Limestone, description and uses of, 99 
, primitive, 228 
, transition, 232 
Litharge, how made and uses of, 206 
- plaster, of what made, 206 
Loadstone, description of, where found, and uses of, 197 
Loam, description and uses of, 73 
Looking-glasses, process of silvering, 176 
Lunar caustic, what it is, and uses of, 181 
Lydian stone, description and uses of, 53 
M. 
Magnesia, how prepared and uses of, 125 
Malachite, description and uses of, 188 
Manganese, description of, how obtained, and uses of, 222 
Marble, description and uses of, 100 
, statuary, 102105109 
, Pentelic, Greek white, and Parian, 101 
, Carrara, Luni, and Verde antique, 102 
, Sierma, Brocatello, Mandelato, Verde di Prato, Lago Mag- 
giore, Bretonico, and Campan, 103 
, Griotte, Marquese, Sarencolin, St. Beaume or Languedoc, 
Breccia of the Pyrenees, 104 
, white Spanish, Seville, Tortosa, Grenada, Spanish Breccia, 
105 
, Lumachelli, Sicilian, Swiss, Portuguese, Russian, Asiatic 
marble of Tabriz, African, American, 106 
, Petworth, Purbeck, 107 
108 
-, Babbicombe, Derbyshire, Kendal, Mona, Tirie, 1 
-, Assynt, Isle of Sky, Sutherland, Glen Tilt, 109 
, Blairgowrie, Glenavon, Ballichulish, Blairmachyldacb, 110 
, mode of cutting and polishing, 111 
, black, 111 
-, Florence, 115 
, Cottam, 116 
Marcasite. See Pyrites. 
Marking ink, for linen, &c. how made and used, 181 
