INDEX TO MINING AND QUARRY INDUSTRY IQI2 eaten 
Little Falls dolomite, 70 
Livingston county, brick, 19; clay in- 
dustry, 17; marl, 74; natural gas, 
A5, 46, 47; petroleum, 51; salt, 7, 
55, 56 
Locke Insulator Co., 2 
Lockport, limestone, 72; sandstone, 
92 
Long Island, clays, 14; glass sand, 62 
Lowerre quartzite, 88 
Lowville limestone, 71 
Ludlowville, salt, 57 
Lycoming Calcining Co., 35 
Lyndon, gypsum, 34 
Lyon Mountain, iron ore, 38 
Macomb, marble, 81 
Madison county, gypsum, 34; lime- 
stone, 72, 77, 78; salt, 56 
Magnetite, 6, 37, 38, 30 
Malone, sandstone, 91 
Mamaroneck, granite, 68-69 
Manhattan schist, 88 
Manhattan Trap Rock Co., 97 
Manlius limestone, 72, 73 
Marble, 7, 9, 10, 64, 65, 72, 78-01; 
analyses, 83 
Marcellus formation, 45 
Marl, 74 
Massena Springs, 42 
Medina sandstone, 45, 46, 91, 92, 94 
Merrill, F. J. H., cited, 87 
Metallic paint, 9, 10 
Millen Portland Cement Co., 12 
Millstones, 9, 10 
Mineral production, 5, 9, 10 
Mineral waters, 9, 10, 40-44 
Minerva, garnet, 30 
Mineville, iron ore, 38 
Mohawk valley, dolomite, 70; lime- 
stone, 71; sandstone, 92 
Mohegan Granite Co., 67 
Molding sand, 57, 58, 59-61 
Monroe county, brick, 19; clay in- 
dustry, 17; fireproofing, 23; gyp- 
sum, 34, 35, 30; limestone, 72, 77, 
78; natural gas, 45; sandstone, 92; 
sewer pipe, 23; tile, 23 
Montezuma marshes, marl, 74 
Montgomery county, brick, 19; build- 
ing stone, 76; clay industry, 17; 
limestone, 76, 77, 78 
Monumental stone, 7, 66, 81 
Morrisville, salt, 56 
Mt Bigelow, garnet, 31 
Mt Pokamoonshine, garnet, 31 
Mt Summit Ore Corporation, 39 
Mumford, gypsum, 35 
Naples, rock salt, 57 
Nassau county, brick, 19; building 
sand, 62; clay industry, 17 
National Salt Co., 57 
Natural Bridge, talc, 99 
Natural gas, 7, 8, 9, 10, 44-48 
Natural rock cement, 7, 9, 10, II, 12, 
73 
New York county, clay industry, 17; 
fireproofing, 23 
New York Transit Co., 49 
Newstead, natural gas, 46 
Niagara county, brick, 19; clay in- 
dustry, 17; furnace flux, 76; lime- 
Some, 72, 75, FO, 7, WSs mMmencwcar|l 
gas, 45, 47; sandstone, 92 
Niagara Falls, limestone, 72 
Norcross Bros., 90 
North Buffalo, limestone, 75 
orth Collins, natural gas, 46 
orth River Garnet Co., 30 
Northern New York Marble Co., 85- 
86, 87 
Northern Ore Co., 100, 102 
Norwich, sandstone, 93 
Nyack, trap, 97 
Oak Orchard springs, 42 
Oakfield, gypsum, 36 
Oatka creek, salt, 56 
Oatka Gypsum Co., 35 
Ogdensburg, marble, 85 
Oily ey 48=51 
Oil City, Pa., natural gas, 45 
Old Bed mines, 38 
Olean, natural gas, 45; petroleum, 49, 
51 
Oneida conglomerate, 92 
