544 



INDEX. 



Page 



Mansfield Square, clay near, 387 



Maple Shade, clay at and near,. . . .383, 388 



Maps, explanation of, 531 



Marine clays, 11 



Marl, Eocene, 147 



in clay, 48 



Lower, 151 



Middle, 151 



Shiloh, 141 



Upper 151 



Marly clay, 61 



Marshalltown clay (Clay Marl IV),.. 155 



Martin, Joseph, clay of, 378, 389 



Matawan, clays near, 472 



Maurer & Son, Henry, clay pits 



of, 458, 460, '461 



feldspar bank of, 178 



Mayetta, clay near, 483 



Mays Landing, clay at, 370 



McCourt, W. E., work of, xxviii 



McHose Brothers, clay of, .177, 445, 446, 462 



Melick, P. W., clay of, 426 



Mercer county, clay deposits in 428 



clay-working industry of,.... 433 



Miller, Mr., clay of, 412 



Millville, clays near, 409, 410 



Mineral Point, Ohio, analysis of fire 



clay from, 319 



Minerals in clay, 42 



Merchantville clay (Clay Marl I), ..159-161 



Merchantville, clay near, 396 



Merrill, G. P., 7 



Mica, in clay, 44 



Micaceous clay, 144 



Micaceous sand, 353 



Micaceous, talc-like clay, Salem 



county, 501, 502 



Middle marl, 151 



Middlesex county, ball clay of, . . . .442, 452 

 clay-bearing formations,. . .435-438 



days in, 337, 434-471 



clay mining in, 336-338 



clay-working industry of,. .470, 471 



feldspar in, 468, 469 



fire clays of, 439, 444, 455-458 



fire-mortar clay, . 458 



fire sands in, 469 



highly refractory clays, .. .439-444 



importance of, 434 



nonrefractory clays, 463-468 



pipe clay, 459 



Raritan clay series of,. . . . 161-196 



refractory clays, 444-455 



semirefractory clays, 455-463 



stoneware clay, 453, 459 



Mining clay, methods of, ...30-36, 336, 339 



Molding brick, 226-232, 246 



fireproofing, 282 



hollow blocks, 282 



pottery industry, 298-300 



Page 



Modulus of rupture 253 



Monmouth county, clay deposits of, ....472 



clay-working industry, 478 



Moon, J. J., clay of, 197, 428 



Moore, C. N., clay of, 426 



Moorestown, clays near, 385 



Morris county, clay deposits of, .. .479, 480 



clay-working industry of, .... 480 



Morris station, clay bank at, 202 



Morristown, clay near, 470 



Mountain View, clay at, 493 



Mount Ephraim, clay near, 400 



Mount Misery, clays near, . 388 



Mount Paul, clay at, 480 



Muscovite, 44, 67 



Mutton Hollow Fire Brick Co., clay 



of, 459 



Muffle kiln, 274 



Murray Hill, clay at, 506 



Myers, W. S., 426, 432, 485 



N. 



National Fireproofing Company, clay 



banks of, 464, 465 



New Brunswick, clay near, 466 



School of Ceramics at, 293 



New Germantown, clay near, 426 



Netherwood, clay at, 506 



Neuvy, clay at, 125 



Newton, clay at, 505 



Nonrefractory clays, 100 



Middlesex county, 463-468 



Northampton, clay near, 387 



North Farwell farm, clay on, 422 



North Pennsville, clay near, 391 



North Plainfield, clay at 121, 503 



Northridge property, clay on, 485 



Nugentown, clay near 486 



o. 



Oakdale station, clay near, 400 



Ocean county, clay deposits of 481-492 



clay-working industry of,. . . . 492 



Ogdensburg, clay at, 505 



Ohio, No. 2, fire clay, analysis of,. . . . 238 

 Old Half Way, clay near, ... .339, 482, 483 



Oliphant, Eayre, clay of, 485 



Oradell, clay at 125 



Ordovician formation, clays in, 207 



Organic matter in clay, 73 



Ornamental brick, value of, 266 



Orthoclase, source of alkalies, 67 



Orton, Jr., Edward, 86, 102 



Ostrander Co., clay pit of, 448 



Overpeck creek valley, clay in, 125 



Oxides of iron, kinds of, 57 



P. 



Pallet driers, 233 



Palmer, Mrs. Elkanak, clay of, 486 



