|
Peridotite, 165.
Permian, 188.
Petermann, A., 381.
Phillips, Henry, Jr., 292.
Phillips, J. A., 330.
Phillips, P. Lee, 330.
Phyllite, 168, 170.
Physiographic features, study of,
" 40.
Physiography, 143.
Piedmont Plateau, 99, 148, 158, 159.
Pierce, James, 240.
Piggott, A. Snowden, 269.
Pigman, 245, 248.
Plan of operation of the Survey, 27.
Platt, F., 281.
Platt, W. G., 281.
Pleistocene, 199.
Pocono formation, 184.
Pomeroy, S. W., 56, 245.
Popple, Henry, 343, 344, 349.
Poppleton, I. "H., 362, 370.
Porcelain materials, 35, 216.
Potomac marble, 209.
Pottsville formation, 185.
Poussin, Wm. T., 240, 241, 364.
Powell, J. W., 327.
Powell, S. L., 320.
Pownall, T., 235, 352, 353, 355, 358,
393.
Presbury, G. G., 354.
Prime, Frederick, 279, 283, 286, 297.
Principio Company, 50.
Prindle, L. M., 102.
Prosser, C. S., 103.
Pumpelly, E., 297, 391.
Purcell, Joseph, 359.
Purvis, M., 251.
Putnam, G. E., 403.
Pyroxenite, 165.
Q.
Quartzite, 168, 170.
Quartz schist, 163.
B.
Eancocas formation, 194.
Baritan formation, 192.
Eatzel, Frieder., 387.
Eau, Chas., 292.
Eeese, George M., 388.
Eibero, 332.
Bice, Clinton, 314.
Eies, Heinrich, 327.
|
Eiordan, 0., 284.
Rippey, Jos., 392.
Ritchie, Albert, 306.
Eoad materials, investigation of, 38,
224.
Boberts, D. E., 91, 327.
Eobinson, E., 389.
Eobinson, S., 55, 240.
Robinson, T., 295.
Bockwood formation, 181.
Boessler, A. E., 275.
Bogers, H. D., 66, 67, 252, 257, 259,
267, 268, 269, 372.
Bogers, J. F., 310.
Bogers, W. B., 66, 252, 257, 259, 267,
270, 281, 292.
Boggeveen, Arent, 337.
Bomney formation, 183.
Rothwell, Eichard P., 314.
Bticker, A. W., 426.
Buffin, Edmund, 56, 245, 249, 257.
Russell, I. C., 101, 282, 284, 285, 305,
311, 315, 395.
Bussell, J., 358, 359, 360.
Bussell, Wm., 354.
S.
Sabine, E., 261.
Sandoz, Ernest, 374.
Sands, 34, 216.
Sandstone, 211.
Sanson, N., 335, 336, 339, 342.
Sartine, 354.
Savage formation, 186.
Say, Thomas, 55, 239.
Sayer, Robt., 356.
Scharf, J. T., 81, 82, 83, 284, 286,
287, 308, 315.
Scharfe, Walter R., 295.
Schedler, J., 375.
Schoepf, Johann David, 235.
Schott, Chas. A., 277, 281, 330, 408,
462, 463, 473, 474, 495, 496, 505,
515.
Schuchert, Chas., 305.
Schumann, C. H., 320.
Scott, Joseph, 53, 236, 359, 361, 372.
Scale, R. W., 341.
Sedgwick, J. S., 278.
Sellar, John, 337.
Senix, John, 234, 340, 341, 344.
Serpentine, 213.
Seybert, Henry, 238.
Shaler, N. S., 80, 276.
|
|