INDEX. 
387 
Page. 
Norridgewock, Me., limestone near, 
analysis of 178 
North Adams, Mass.. limestone near, 
analysis of 189 
North Birmingham, Ala., shale near, 
analysis of 66, 70-71 
North Carolina, limestones in, oc- 
currence and analyses 
of 267-268 
marls in, occurrence and analy- 
ses of 268 
Portland-cement resources of_ 267-268 
North Dakota, cement rock in, oe- 
currence and analyses 
of 34,269,3.12 
clay in 269 
natural cement in, analyses of__ 351 
North Judson Marsh, Ind., marl at, 
analysis of _^ 142 
North Park, Colo., limestone near, 
analyses of 122-123 
Northampton. Pa., plant at 284 
Northampton Portland Cement Co., 
plant of 284 
Norton, W. H., on Wapsinnicon for- 
mation 151 
Notre Dame Lake, Ind., marl at, 
analysis of 142 
O. 
pgTesby, 111., limestone and ■shale 
near, analyses of 136 
section at 136 
Ohio, cement rock in, occurrence 
and analyses of 352 
clays and shales in, occurrence 
and analyses of_ 205, 274-275 
fuel in 26!) 
limestones in, occurrence and 
analyses of 269-274 
marls in, occurrence and analy- 
ses of 273, 275 
natural-cement industry in 352 
Portland cement in, market for_ 269 
Portland-cement industry in _ 273-275 
rortland-cement resources of_ 269-275 
slau - cement in 371 
Ohio Valley Cement Co., plant of 341 
Oil, as fuel, use of___ 56. 116. 121. 124. 255 
Okanogan Highlands, Wash., lime- 
stone in. analyses of_ 324-325 
Oklahoma, cement in. market and 
transportation for 277 
limestone in 275-277 
map of part of 308 
Okolona, Miss., limestone near, 
analyses of 218 
Okolona area. Ark., location and 
character of 107-109 
Old Town Creek, Ky.. limestone 
near, analyses of 174 
Olsen's switch, Ark., clay at, analy- 
ses of 11-1 
Opeche formation, occurrence and 
character of 297 
Page. 
Ordovician clays, occurrence and 
character of 61.0.") 
si r also Roekmart slates ; Cin- 
cinnati group ; Hudson 
shale. 
Ordovician limestones, occurrence 
and character of 189, 
275, 277. 325-326, 329, 344 
See also Viola formation ; Cin- 
cinnati group : Trenton 
limestone : Knox do- 
lomite ; Lenoir lime- 
stone ; Sevier shale ; 
C h i c k a in a uga lime- 
stone ; Stones River 
group; Leipers forma- 
tion ; Chazy forma- 
tion ; Shenandoah lime- 
stone ; Lower Magne- 
sian limestone ; Platte- 
ville limestone. 
Oregon, limestones in 278-279 
Oriskany Falls, N. Y., limestone 
near, analyses of 250 
Ormrod, Pa., plant at 284 
Osage formation, occurrence, char- 
acter, and analysis 
of 156-157, 163 
section of 157 
Osborn, Ohio, limestone near, analy- 
ses of 270 
Oskaloosa, Iowa, limestone near, 
analyses of 159 
Ottawa, Kans., limestone near, 
analyses of 168 
Ottumwa, Iowa, limestone near, 
analyses of 158 
shale near, analyses of 160 
section at 15"s 
Oven Bluff, Ala., advantages of 79 
clay at, analysis of 82 
Owen station, Ohio, limestone near, 
analyses of 271-272 
Oxanna, Ala., shale at. analysis of_ 65,71 
Oxford, N. J., limestone near, analy- 
sis of 235,286 
P. 
Pacific Portland Cement Co., plant 
of, location of 120 
Pahasapa limestone, occurrence and 
character of 297-299 
Paleozoic shales, analyses of 70-71 
Parleys Canyon. Utah, limestone in. 
analyses of 310-311 
Pattenhurg, N. J., limestone near, 
analyses of 238 
Pattersons Creek, limestone near, 
analysis of 320 
Pea Ridge, Ky.. limestone near, 
analyses of 175 
Peapack. N. J., limestone near, anal- 
yses of 235, 286 
Peerless Portland Cement Co., 
quarry of 199 
