None
firt brick floor lilt, uble ■ofl-mud bricks, tabic Miff-mud brick), tabic test] of brick vitrified brick Adams Clay- Mi King Co.. clay pit of Ad»in». Henry C. clay pit of Alkjlil*. amount in clay fluxing action of source of Alloway. descrifHion of clay near,.. 4 Allo^ay cUy, Tbe character of economic description of....; physical properties of, 2 quantity of soluble Mlts in.. Salem county apecifie gravity of Alpba, day at Amboy slonevare clay, extent of Aneriean Ceramic Society sa. : Ammonia, in clay Amount clay mined in New Jersey,.. in United States. ■hipped to other states, Analysis, chemical value of, ultimate Analyses, ball clays, foreign different types of clay feldspar fire brick, foreign New jersey ; Analyses— Continued. Page ,ge i fireiiroofing clays, 261 ,53 i highly refractory clay 1B7 kaolins, foreign J» ij^ pressed-brick clays, foreign,. 311 ij, I Table of Appendix C. ,jj I Anderson & Company, A. C., clay pits <S3 '■ "' "" 13, 444-4S6 Applegate. D. H.. clay on property of. 477 ,8 I Applegate. Samuel, clay on properly i "f 48? 67 Appleget. Chaa. H.. day on properly 68 I °f ■"■ 6j Aqueo-glacial clay 124 1^ I Asbuty clay t4S .^j economic description of..., 3S3-3J6 143 I Monmouth county 47S-4J8 ,,, occurrence of, 145 ,,j physical properties of 354 44 I specific gravity of, 114 jj ■ Aibury Park, description of cUy ioo ] "'"■ 47S-47? l[, ' physical characters of clays loS I " »SS i6« >^''""' "'''»' pi' " 3S* ,,p I Asstscunk creek, description of ctayi 101 '"' "9 gj Athens. Texas, analysis of lire clay ,40 ' *'™ 3'9 , Atlantic county, clay depoaits in,. ..369-373 I4t I , eUy industry in 37» ^j Auger, used for boring clay 18 13' I 4fi B. -Si Bakersvillc, clay at '33,369.37a 196 I Ball day i«6, 338 l«9 analyses of 51.196 IM j description of J14 )S7 I Middlesex county 443, 4S» 117 I Barber. E. A 304, 30s (535) INDEX. INDEX. 537 Page Campbell, Morrell & Co., clay of,.... 374 Canandaigua, N. Y., analysis clay from, 51 Cape May formation, clays in, 130-132 Cumberland county 413-417 localities, 131 mica in, 44 origin of, 1 30 physical properties of, 346-348 quartz pebbles in, 43 Cape May county, clays of, 406, 407 clay-working industry of 407 Carmel, clays at 412 C. C. ware, value in 1902 309 Ceramics, School of. New Brunswick, 293 Chaser mills, pottery manufacture,... 297 Cheesequake creek, shaft mining along, 32 Chemical analysis of clays, 49~53 list of, 51, 221, 281, 296. 297, 3»S, 319, 320. 327. 333. 440, 441. 443, 469, Appendix C. Chemical changes in clay deposits, ... 20 Chemical composition, fire clay, 311 fireproofing clays, 281 Chemical properties of clay, 39-80 China, burning of 300 glazing of 302 value in 1902, 309 Chlorite, source of magnesia, 64 Clark, Dr. W. B., 151. i53. i57 Clarke. F. W 40 Clarksboro, clay near, 421 Clarksville, clay near 430 Classification of clays, based on fusi- bility 100 based on uses, 214 Clay, adaptability for working, 29 Alloway 14a analyses, different types, 51 list of, Appendix C Asbury, i4S burning of, 63, 93-100 calcite in, 47 Cambrian, 207 Cape May t 30 chemical analysis of 49-53 chemical changes in, 20 chemical properties of, 39-80 classification based on fusi- bility, 100 based on uses, 214 colluvial, 7 compounds in, S3 concretions in 23 consolidation of 22 Cretaceous, 149-203 definition of, 3 deposits by counties 367-508 determination of extent 27 determination of thickness, . . 27 Clay— Continued. Page Devonian, 206 discoloration of 20 distribution of, geological,... 119 dolomite in 48 drift or bowlder, 13 earthenware 294 economic description of, — 343, 367 estuarine, i z exploitation of, 27 faulting of 15 feldspar in, 43 flood-plain, 12 folding of, 14 garnet in, 48 geological distribution of 119 glacial, 124 glauconite in 46 gypsum in, 48, 62 haulage of, 36 hematite in, 45 hornblende in, 48 iron crusts in, 22 iron ores in, 44 kaolinite in, 46 lake, 12 leaching of, 22 lime in, 59. 64 lime-bearing silicates in, effect of, 62 lime carbonate in, effect of,. . 60 limonite in, 45 magnetite in, 45 marine, 11 marl in, 48 mechanical changes in 14 mica in, 44 micaceous, 144 minerals in, 40 miners, list of 342 mining, amount of 340 areas, 33^-339 Delaware river area 339 industry, 335-342 methods, 30-36, 339 Middlesex county, 336-338 Trenton area, 339 Woodmansie area, 339 occurrence of 3-24 organic matter in 73 origin of, 4 Pensaukcn 133 physical properties of 8i Pleistocene, 123 porcelain 296 Post-Pleistocene 120 Pre-Cambrien 208 preparation for market, 36 production, statistics of,. . .509-512 prospecting for, 25 pyrite in, 46 H S38 IND page Pve Clay prodocta, rank o( New JerKy Clay Report of 1878 «iii Clayton. William, clay on property of. 49' Clay.iUe Mining S Brisk Company. clay pits o( *i>8 Clay.workins industry by counn«. kc AilMtic cDiioiy, tic. ^^^g Ihippcd ta othEr Hates, .. ^^1 aiderlu In. :;: « CliRwood tigniiic tindy clayi t«G phytical propenia. J49-It> Cohansey formation, delinilion of ^^^1 used in lottery maldng. .... 30 ... JM Cole, David E.. clay depo.it of lol Color of day lie pfaytical properliei of MS- M> ^H docription omic .-343-366 -SiJ-SiS ... IS" .382-.a8 Common brick. 9« alio Brieli, ai? Conduit indnatry. New Jetiey, 1B4 CondoiU J83 ^^P- Clay Marl Krio. Ttie ^^^ CUy Marls. Burlington iouo(». physical soluble : ■larl in, 4S>. 411. 4S& 4S« clay- working indailry of,... Oay Marl \\ , \V. H., tUy of,.. D. IND P.g< EX. Erosio E»ex Eilua E»»po Eoan Excel* Fault! Peldsp I'eld.p Pwric Fields Fireb Fire Firesi . 539 Page county, clay indu.try 0 4l8 ?"''■"""" atioo of water in clay, Mills, clay near ,2 D«TenportjClay at, or Terra Cotta Compa y. clay of 4f7 F. ong.... 339 of fira ...,468,469 ]Bi,383 .Vfii .>97.339,4'8 o»dein cUy* S6.i7 .«S. 47S, 477 Dry cruihing. brick inanufac "" "i burning of. J'S Ick :.30 methoda of manutacti temperature of bumi l»y .73. E. Eanhenwire. burning of. .. ,g^_JO„ ..,.3j6. 331 definition of. 100 114 311 337 gl«ing of 301. joj lemperaturc of burning 105 fuwbility of. 3 S. 3<7. Appendix D Easlem Hydraulic PrcH Br clay pin of ek Co., .4..1, 481.483 Middle... county, .. ■ ■ -439. Sbemhalm. analysis of fire-cl Edgar. C. S.. clay banks of,. .' 469 mineral impuritie. in i" Ohio No. 1. analyiis Pl"ticity v»!nc n 1903 too rceotag* Elliion properly, section in pil '94 "8 ortar clay, Middl«ex c od, Middlraex coutily,. Erickwn'i clay. dcKription of 4tJ ....191,469 INDEX. < Clouo tcmpcntUTe of hurning, Fire shrinkage, see Shrinlragr, Fish Houte, cUys at 131. 1 FluUng brick PIciDingtoD, clay at ■ FUoi Flini c!»ji Flood-plain clays Floor driers in briek oMBuIwiare, .. absoTption of water by,, . , .. Flarei FlDri<! '.nidysii Fluffy Mcd, The.. Forbei turn, ftldi a HIU foTinaiion >e£ni Company, eUy pila I., analyiu of fire day !it« munty. cUy de^io' I clay-working iodiotr , Globe Fi Golden, wit. value in >. L. C. work ol Ctecniand, tee Clancum Grog Gruiuladl. Geim day ne«. .. . Hscdrick, clay pili of , HaiDH. David, day of.--- ilammer. Jacob, clay bank • I Hand S Son, D., clay of.. i| Harrimoville, clay near, - - I Hay, clay on ptopetlj of,. I Hailcton eitatc, day on,-. I Hecht, I Herbcni I llerberli clay rick Comi day iidelheim, analysis of lire t refraclory days, definition,. . Middlesex c I Highmown, day nes 1 Hill. R. T bait fma H lln* block. n Glanconilc. an Claled brick.. method of manDfactarc,,. INDEX. 541 Page Hornblende, in clay, 48 source of alkalies, 68 source of magnesia, 64 Hottinger, A. F 106 Hudson county, clay-working industry, 424 Hudson shales, 24, 365 Port Murray, 507 Hunterdon county, clay in, 425 clay-working industry 427 Hylton, H., clay pits of, 391-393 I. Iron crusts in clay, 22 ores in clay, 45 oxide in clay 5^-59 pyrite, see Fyrite. J. Jacksonville, clay near, 38S Jollying 299 Jordantown, sections in wells at, 202 Junction, clay near, 426 K. Kaolin, 6, 47, 177, 296 amount ferric oxide in, 56 amount lime in 64 amount magnesia in, 67 amount mined in 1902, 340 amount silica in, 55 amount total alkalies in, ... . 67 analyses of, 297 definition of, 214 mica in, 44 uses of, 214 value mined in 1902, 340 Kaolinite, 6, 54 analysis of, 51 in clays. 46, 312 Kaolin-silica-titanium mixtures, fusion of 318 Karrsville, clay at, 508 Keasbey, clay at, 464, 465 Kennedy, W. M 73 Keyport. clays near, 472-475 Kilns, brick manufacture, 239 continuous, 241 up-draft, 240 muffle 274 Kingsland, shale at 374 shale mining at, 36 Kinkora, clay at 381, 383, 387, 389 Kirby, James, clay of, 420 Knapp, G. N., work of, xxv, 117, 138, 153. IS5. 358 Knickerbocker Life Insurance Co., feldspar bank of 469 Kresner & Holland, clay of, 506 Page Kiimmel, Henry B., work of xxv L. Labar, L. T., clay of 507 Lake clays, 12 Lakewood, clay at, 491 Lambertvillc, clay near, 425 Laminated clays, Woodbridge clay,... 184 Laminated sands. No. 4 168 Langenbeck, Carl 52, 286, 287 Leaching of clay deposits 22 Leaf-bearing clay 191 Le Conte, Mrs., clay of 491 Le Due, Constant, clay of, 389 Leisen, J. H., clay of, 462, 464 Lignite 190 analyses of 167 Lime-bearing silicates, effect on clay of, 62 Lime carbonate, effect on clay, 60 in clay, 48 Lime in clay, 59 amount of, 64 Limesand, 151 Lime-soda feldspar, source of alkalies, 68 Limestone, composition of, 6 Limonite, in clays, 45 Linden, clay near, 506 Little Falls, clay at 493 Little Ferry, clay at, 373 Little Timber creek, clay along, 399 Locality No. i, 188 2, 188 6,...i8s, 188, 315. 440, 444.455 7. 185, 188 8, 185, 188 9. 188, 194. 44J. 463 10 188 II 188, 442, 445 13 188 14,... 185, 188, 315, 439. 445. 456 15 188 16, 185, 188, 442, 462, 464 17 188, 445 18, 188, 44S 19 188 20, 188 21 188, 441, 459 23 188 24,... 188, 315, 445, 458, 460, 463 27 442 28, 185, 463 29 185, 187, 188, 315, 338, 442, 445. 453. 464 30, 185,187,188,442 31, 185. 188 32, 178, 182 33 185,464 34. 185.463 INDEX. IfOaHty Ko.— CoBUuMd. 109 ■!«. HI 1<I MS. .H. .1...99.J7B. 1*3 - IsClSt. •«4 1S«. 1)*. ■• ll«,Mt, IJ* 9S.WJ. UJ .". .6..3«..j6,.36j. '49. M, lis. l6l.J«".36..36». 169! ... "U, U3. INDEX. 543 I«ocality No —Continued. 173 >74 175 176 177 178 180 181 i8j 183 184 185 186 187 188 189 190 191 192 193 194 195 197 198 199 201 202 203 204 206 207 208 209 210 211 212 ^»3 214 216 217 218 219 220 221 222 223 224 226 227 228 230 231 23^ 233 234 ^35 236 237 238 144. 347. 131, 220, 344, 347, .87, 114. 131. 347. "4. • 95. "4. 140. 349. 344, 408, 114, 140, 349. 132, 347. 132. 347. 44. 347. .114, 140, 349, 362, 122, •t59. 362, 363, 114, 140, 349, 140, 349, 140. 349. 140, 349, 140, 349. 140, 95. "4, 140. 349. 140, 296, 140. 349. 486, "4. 140, 349. 140, 140, 349. 140, 140, 349, 350. 122, 146, 122, 145, 95. 114, 145. 354. 355. 92, 114, 140, 349. 91. 140, 349. 489. 87, 114, 167, ,92, 114, 167, 159. 159, 161, 360, 159, 358. 359, 360,473. 87. 114. 345. 120, 121, 189, 192, Page 422 422 422 421 500 410 414 414 409 408 416 411 412 410 416 406 413 412 431 161 430 370 369 370 37* 401 402 140 402 487 487 487 483 485 485 481 482 477 477 477 475 489 490 474 167 474 167 360 161 474 474 161 474 189 189 503 503 503 J 95 195 I«ocality No.— Continued. Page 241 185 242 178. 182 244. »85, 189 245 189 246, 185 247. 185 249. »85 252, 185,189 253. 254. 256, 259, 263, 264, 267, 195, .195. 185 185 189 189 196 196 176 268 87,114,176,452 270, 146,477 271 364 273 175. 179. 338 274 176 275 132 276, 114,121,345,425 277 206,425 278 207, 508 279, : 121 280, 507 281, 426 282, 95, 208, 507 283 207,507 284, 285, 286, 287, 288, 289, 479 505 493 493 493 493 290 114. 345. 506 291 114, 346 292, 345.505 293 ■• 479 294. 479 295 159.360 297 480 298, 388 299 503 Lodge, B. A., clay of, 419 Lorillard, clay at, 45, 475 Loss in weight by burning, 63 Loss on ignition, 50 Low refractory clays 100 Lower marl, 151 M. Macauley, G. C, clay of, 433 Mackler's experiments on magnesia in clay 65 Magnesia, effects of, 64-67 Magnesium sulphate in clay, 64 Magnetite, in clays, 45 Manning, J. H., clay bank, boring at, 178 Mansfield Squire Maple Shtdt. da. Mapi. extdatulioi Middle,. Shiloh,. Upper. .. Mays Landing, clay a UcCaurt. W. E„ wai , McHoee Brother), cUj Mtlick. P. W.. cUy o rice ' Modului of tiiptur« ijj . MonnWDth eminlir, eUy depniit* of, 4^ I cla]>-wiirkin( indiutrr. 4tt ' Moon. J. J., cl»y of i«r,4t> j Moore, C. N., etay of, tti I Moorutown, eltyt nwr. at MorHs couoiy. eUy depunti of... I Morris luiion. clay banV x nduatry of,. Mvly ( MarshalUown day (Cby Marl IV),. . 155 Marlin, Joseph, clay of, 378,389 I Mount Ephraim, el»y neaf. ■ - Mount Misery, day* Dew,.. Mourn Paul, elsy at Mutton H0II0V Fire Brick Muffle kiln. '. Nati ! Firepr» I Company. ■ Miller. Mr., day of 41 MilMIle, dayi near, 409, 41 Hlnenl Point, Obia, analylis of fire day from. 3. Mineral) in day, 1 Merchantville day (Oay Mitl I),..t;9't< Uercbantiille, day near 31 Merrill, C. P Mica, in day, , Micaccoui clay, ,.-.,.- t^ Mieaeeoui land 3. Micaceoui, tilc-like clay. Salem county, joi.st Middle marl 1. Middleiex county, ball day of 443.4' day-bearing fonaationi... .435-438 =■«?» in. J3?, 434-4 clay mining in 3jfi-ja8 1 tunlia of, 464, 46s V Brunswick, clay near 4M School of Ceramica at. , - . . . 393 New Gemanloirn. clay near 414 (ietherwood, day at, s«4 cUy a' clay ai I New. I Nonrefrai j Middleiex county.. Nonhan^Ion, clay near, .... Drib Farwell farm, day on orih PcnnsviUr, cUy near. Norlhridge p field, ( S*5 fif«=la*sof 419.4 fire-mortar day, 4, 4ss-4sa .... 4SB Ohio. No. 3. highly refractory days ■ .439-444 OraddJ. day nonrefractory clays,- .. . .463-468 aaritan clay aeriea of.. ...6.-.9« Onhodase. so aemi refractory days,. .. . ■455-483 Ostrander Co clay, metbodi of....jo-3 6. 336. 339 Oxides of Iro bollowblodu Pallet drieri. Palmer, Mrs. Elkanak, cUy of,.. INDEX. 545 Page Palmyra, clay near, 339, 391 Paper clay, 216 Parker, J. A., clay of, 479 Parmelee, C. W., article by, 293, 294 Parsippany, clay at, 480 Passaic basin, clay in upper, 128 Passaic county, clay deposits of, .... 493 Passaic valley, clay in, 128 Paxson Co., J. W., clay pits of, 376 Pedrick, G. C, clay of, 121,425 Pensauken clays, 133 fossils in 134 Pensauken creek, clays near,. .201, 388, 399 Pensauken formation, 133-135 Pensauken gravels, quartz nodules in, 43 Pentonville, clay at, 494 Perrine & Son, H. C, clay banks of 454.459 Perth Amboy, clay at, 464 Physical properties of clay 81-115 Physical tests of clays, tables of, .. 346-364,525 Pine Brook, clay near, 477 Pipe clay 190,215,338 definition of, 214 Middlesex county, 459 Plasticity, 81-83 Pleistocene clays, . . . 123-135, 289, 403-405 economic description of , . . . 343-348 soluble salts in, quantity, .... 78 specific gravity of, 114 Pleistocene formations, subdivisions of 123 Pleasant Mills, clay at, 371 Ponds 26 Porcelain, burning of 105, 301 clays for 296 decoration of, 303 electrical, 303 glazing, 302 value in 1902, 309 Port Murray, clay shale at, 507 mining of, 36 Post-Pleistocene clays. The, character and location, 11 9-1 22 economic description of , . . . 343-348 specific gravity of, 114 Post- Pleistocene clay loams, 121 Pot clay 216 Potash feldspar, source of alkalies,... 68 Potash in clay, effect of, 67 Pottery, clays for, 294 alkalies in, 67 lime in, 64 magnesia in, 67 silica in, 55 methods of manufacture, . . .297-303 New Jersey industry, ..304-309,510 early history, 304 list of manufacturers, 305,309 Pottery, N. J. industry— Continued. Page value in 1902, 309, 510 Trenton, 305, 511 Prall, J. P., 422 Pre-Cambrian formation, clays in, 208 Preface, xxiii Preparation of clay for market 36 Pressed brick, 218 clays used for, 221 temperature in burning, 248 Properties of clay, chemical, 39-80 i physical, 81-115 ' Prospecting for clays, 25 Pug mills, brick manufacture 225 pottery manufacture 298 Pyrite, alteration to magnesium sul- phate, 64 in clays 46, 322 Pyroxene, source of magnesia, 64 Q. Quartz in clay 42 R. Rancocas, clay near, 385, 387, 390 Rajotte's clay pits, 120, 503 Rapp, A. C, clay of, 426 Raritan clays, 161-203 character of, 161-163 economic description of , . . . 363-365 fire clay, 192-196 formation of, 164 location of, 165 potter's clay, 192-196 soluble salts in, 77 specific gravity of, 114 subdivisions in, v66 stratigraphic relations 163 thickness of, 163 Raritan river, clay north side of, ... . 464 Rational analysis of clay, 52 Raymond pulverizer, 38 Red sand 151 Red shales, 24 Reed, B. H., & Brother, clay of, 430 Reeve, A., clay of, 383 Refractoriness of fire brick, 326, 333 fire clays, tables of,.. 315, 319, 320, 441, 445, 450, Appendix D Refractory clays, defined, 100 Middlesex county, 444~455 Reports of the Survey, xxiii Re-pressing 232, 260 Residual clay, 6, 82 Retort clay, 10, 215, 337 Richmanville, clay at, 498 Ricketts, J. B., clay of, 480 I Riddletown, clay near, 499 546 Rlct, Heii ■ich. 1 INDEX. Page »S. 3 KiveredKC, c!ay pit at EEabbiniville. clar nur, Kobcrli, Z. P.. clay bank of, Rocky HUl, aUy oiar KOKnhaya. c!»y at Rutile. in days! .'. Ryan, P. J,, day of 8. Sagger. Sagger day Sdnm CDUnly, day deponilg of 49 day-working industry of Salt glaie Sand bed. No, r. tire landl No. 1. Rarilan day stria.... -Vo. 3. Raritan day Mria>. .. No. 4. Rarilan day leriea,. .. rScci oa tensile atrength effect 00 f luibititj'. - '99. i'S. i' i»By, aiie of graina. Sand Hilla. clars at.. .446. 447, 4)8, 44 daysW value In igoi Saucdein. T.. clay of. Sayre & Fisher Company, day pili of, 46 Sayrcville. days at and neat,..4S'. 4^ Si»iiergood, W., day of Schooleya Mannlain. day at Scott. Joseph, clay of Scove kiln Secondary chiingu in day deposits,.. Sedimenlaty day 8, Seger, Herman 58, «i. 101. 31 wperiraenH by Seger cones, description and table of, Semidry.preaa molding Scmirefractory days Middlesex county 4i Sewn Star*, day »l Shaft raining in South Amboy dis- Sliale (see alto Triainc ihalii and lahlea of m9. ^t-JIU. fireproofing iSa effect in 6re brick effect in fire day. -jafi-JW Silica-kaolin- titanium mixture*, fu <«) Simpson. Speoeer. ... *t7 Singac.day ne« Slaking of clay. ■ IS. *» Slip glue, see Glasint pollery. prevention of, f Somerset county, day deposit* in,... JOJ day-WDrking industry of. S04 South, Joseph, day pit of, ... 4aB South Amboy district, shaft mining in. 3. thickness of. Specific gravity of clay 114 State College. Depanmenl of Ceraniic. Standard Fireproofing Company's sand pi" 'J? Stoneware. lee Petltry. amount mined in ijoJ. - ... 34- INDEX. 547 Pag« Stover, E. C, 307 St Louis, Mo., analysis of fire clay from, 319 Stratigraphy of New Jersey clays, .. 1 1 7-209 Sach, J. R., clay piu of,. 450, 45 1. 45^ 461 Sulphur, see Pyrite. Sulphur balls, 174 Surface working of clay, 3^ Sussex county, clay deposits of, 505 Sussex (Deckertown), clay at. 505 Swamp clays, 12 Swedesboro, clay near, 421 T. Talc-like, micaceous clay, 353,422 Tallman, A. D., clay on property of,. 505 Tansborough, clay near, 40-' Tempering, hrickmaking, 225, 246 pottery manufacture, 297 Ten-Mile Run, clay near 196 Tensile strength, 83-90 92 effect of sand on,, fire clays, 322 measurement of, 84 range of 85 relation to air shrinkage,. .. .92-93 relation to plasticity, 83,90 relation to texture, 87 tables of 85,346-364,525-527 variation in 86 Terrace clays, 12 Terra cotta, manufacture of, 272-275 New Jersey industry 274 list of producers, 275 temperature of burning,. 105, 274 value 275 raw materials, 269 distribution, 272 Terra-cotta clay, 215 distribution of, 272 Middlesex county, 338 physical characters, table, . .270-271 Terra-cotta lumber, 277 Tertiary formations, clays in, 137-147 subdivisions of, 137 Texture of clay, 107 relation to tensile strength, . . 87 Thackara's brickyard, clay at, 421 Thermoelectric pyrometer, 106 Thickness of clay deposits, determina- tion of, 27 Thompson, N. B., clay of, 480 Tile, drain, 288 floor 285 value in 1902 288 wall, 287 Till 124 Tilton, E. R., clay deposits of, 487 Tilton, Isaac, clay deposit of, 489 Page Timbuctoo, clay near 387 Tinsman, Henry I., clay bank of, aoo Titanium, 69 effect in fire clays 317 Titanium-kaolin-silica mixtures, fusion of 318 Titanium oxide, effect on fusibility,.. 71 mixtures for tests on, 70 Toms River, clay near, 487, 488 Townsend, E. N. & J. L., 483 Transverse tests of brick, 252 Trap rock 206 Trenton, clays near, • • i97» 428, 432 pottery industry at,. . .305-308, 511 Triassic formation, clays in, 205 Triassic shales, economic description of 365, 374 Tuckahoe, clay near, 407 Tuckerton, clays at and near, 485. 486 u. Ultimate analysis of clays. 49-52 Underground workings of clay. 30 Union Clay Works, clay at 483 Union county, clay deposits of, 506 Up-draf t kilns, 240 Upper marl, 151 Uses of clays 213 Uschwold & Ulrich, 493 V. Valentine, E. W. & Brothers, feldspar bank, 1 78 Valentine, M. D. & Brothers Co., clay of 439 Valentine, R. N. & H. Co., clays of,. 447 Van Deventer Station, section near... 179 Vineland, clay at 416 V^isccwity, 98 Vitrification 98 Vitrified brick, water absorption of,.. 253 value of, 266 W. Wad clay, 215, 338 Wall tile, 287 firms manufacturing, 288 Ware clay, 214 Warren county, clay deposits of, 507 W'ashing clays, 36 Washington, clay at 507 Water in clay, 7 1-73 Waters, R. H 250 Weathering clay 223 Webster, Isaac, clay of, 504 Weight, loss in burning, 63 Wenonah sand (Clay Marl V), 154 West, Joseph C, clay dug by, 378 d !M« M'hlppanjr, el*T *l Whita wiaa, claji for,-- Whftln**. d«r nsr... Wikoi, H,. day of.... Wlldc. Mark L. cl*)' ai WilMn'i (islion. cU; ni WiodMr, eUy It Winalow Junciion, diyi ■!... Woodhridfc el»)i •t...4M, 44o, 441, 441, 44j. 444. 45). *fh ilt' *sB- 'tlVi 4^- 4^ti 44i. *43i d Wo«lbrid« daj iB*-l dutribullon of inlcimedule b«As.. thickntu ot. Wood! cUr pit. WoodUDOD, cby nni. , Wooliian. Lewi. WsolKni. L H.. woilsof... yorlito«n. cUy» near..- d € J J ■>4 V <.. .. -O i «%^*«A^<d^ '^ ^" \f.-.'--v 5 in P-' "-«•» i' ^^ ■ A >> « <A^ »<iMA.''i-*Uirt^>iiiW >j ■■. ■ ■ »■ ■. 