388 
INDEX. 
Page. 
Pella, Iowa, limestone near, analy- 
ses of ., 150 
I'ella beds, character and occurrence 
of 163-164 
Pembina. N. Dak., plant at 335 
Penn-Allen Portland Cement Co., 
plant of 284 
Pennsylvania, .cement rock in, loca- 
tion of, map showing- 284 
cement rock in, occurrence and 
analyses of 287, 289, 352 
clays and shales in, occurrence 
and analyses of 287-288 
kiln coals in, analyses of 56 
limestone in, occurrence and 
analyses of 279-283, 
285-287, 289-290 
map of 314 
natural-cement industry in 352 
Portland-cement industry in _ 284-294 
Portland cement of, analyses of_ 292 
production of 284, 293 
Portland-cement plants in 284 
Portland-cement resources of_ 279-294 
slag cement in 371 
Pennsylvania Cement Co., plant of_ 284 
Pennsylvanian limestones, analyses 
of 135, 
141-142, 175, 225, 328 
occurrence and character of__ 61, 134, 
140-141, 174-175, 225, 327-328 
Sec (ilso Des Moines formation ; 
Missourian formation ; 
Bethany limestone ; 
Cottonwood Falls 
limestone ; Ferriferous 
limestone. 
Pennsylvanian shales, analyses of__ 136, 
160, 225 
occurrence of 61, 66, 135-136, 225 
Penville. N. J., limestone near, 
analysis of 235 
Perkinsville, N. Y., limestone near, 
analysis of 253 
Permian limestones, occurrence, char- 
acter, and analyses 
of 169.229 
Penis, Cal., clay of, analysis of 121 
Peters Valley, N. J., limestone near, 
analysis of 242 
Petersburg, W. Va., limestone near, 
analysis of 327 
Phillips, Me., limestone near, analy- 
ses of 178 
Phillipsburg, N. J., limestone near, 
analysis of 234-235 
plant at 236 
Phoenicia, N. Y., clays near 254 
Phoenix Cement Co., plant of 284 
Pickensville, Ala., section at 215 
Pierce, Wis., limestone near, analy- 
sis of 330 
Pierce limestone, occurrence and 
character of 305 
203 
231 
188 
270 
98-991 
Page, 
Pierre shale, occurrence and char- 
acter of___ 229-230, 269, 296 
Pinckney, Mich., shale near, analy- 
sis of 
Pine Valley, New, limestone near, 
analysis of 
Piney Run, Md., limestone near, 
analysis of 
Piqua, Ohio, limestone near, analy- 
sis of 
Pitkin limestone, occurrence and 
character of 
Pittsburg, Pa., plant at 284, 294 
Pittsburg limestone, occurrence of 281 
Plaster, burned, use of 58-591 > 
Platteville limestone, occurrence and 
analysis of 329-330 
Pleasant Lake, Mich., limestone near, 
analysis of 
Pleasant Valley, Md., limestone near, 
analysis of 
Pleistocene clays, occurrence, char- 
acter, and analyses 
of 202-205, 
Pliocene limestone, analysis of 
Pluminer Lake, Mich., limestone near, 
analysis of 197 
Pocahontas coal, analysis of 164 i 
Pocono formation, occurrence and 
character of 
Point Pleasant, Ohio, limestone near, 
analysis of 
Polk Bayou, Ark., limestone at, anal- 
ysis of _ 91, 
Polk Bayou limestone, occurrence, 
character, and analyses 
of ^___ 91-93 
Pond Mountain, Ark., limestone at, 
analyses of 97 
Portage River, Mich., limestone near, 
analyses of 194 
Portland cement, analyses of 82, 
86, 255. 256, 259, 292 
barrel of, weight of 40 I 
burning of 43, 53-58* 
comparison of natural cements 
and 21-23tt 
composition and character of__ 23-24, 
39-40 
composition of, relation of burn- 
ing and 56 
definition of 20-23.43" 
grinding of 43. 58 
ingredients of 25-26 
literature of 17-18, 35, 53, 
86, 116, 121, 124, 137, 144. 244 
manufacture of, dry process of _ 44-50 
fuel requirements of 54-56 
growth of 15 
materials necessary for, 
quantity of 40 
methods of 43-59, 288 291 
wet process of 44, 50-53 
materials for, analysis of 53 
character of 16-17 
197 : 
181 
226 
2 31 
270 
93, 97 
