I 12 
1 he . I in mean Geologist. 
December, 1905. 
Present condition of the earth's in- 
terior. W. H. Seamon. xiv, 20. 
Preservation, of the glacial grooves 
of Kelley's Island, (p.s.n.), viii 
266; Of muscle-fibres in sharks in 
the Clevland shales, b. Dean, 
xxx, 273. 
Pressure on continental glacier, A. 
"Winehell, i, 139. 
Preston, C. H., Sketch of, W. H 
Barris, xxviii, 358. 
Preston, H. L., New Meteorite 
from Oakley, Kan., (rev.), xxvii 
50. 
Prestwich, Jos., Geological text 
book, (rev.), ii, 341; Nomencla- 
ture of the Quaternary, (eit.). 
(p.s.n.), ii, 367; (cit.), iv, 18, 
(cit.), v, 208; 3X3; (p.s.n.). xvii, 
191; (oblir.j xviii, 133. 
Pre-Taconic supposed organisms, 
(ed. com.), xviii, 123. 
Pribilof Isiands, of Alaska, S. 
Brown, (abs.), ix, 217; J. Stan- 
ley Brown, (rev.), xi, 57. 
Primitive man in the Somme val- 
ley, W. Fpham, xxii, 350. 
Primordial fossils, from Mt. Stev- 
ens. C. Rominger, (rev.), i, 61; 
fauna discovered in Britain, Mar- 
cou, ii, 77; fauna discovered b> 
Emmons, (cit.), iv, 50; Fauna in 
the British isles. J. W. Salter, 
(cit.), vi, 80. 
Principal Missonrian section, C. R. 
K( \ es, (abs.). xxii, 251. 
Principles and methods of correla- 
tion by means of plants, L. !•' 
Ward. (rev.), xiv, 334. 
Prince Edward Island, Surface ge- 
ology, R. Chalmers, (rev.), xviii 
46. 
Princeton, Scientific expeditions, 
Op.s.n.), vi, 136; Scientific ex- 
pedition, (p.s.n.). viii, 64; scien- 
tific expedition, of 1S91, (p.s.n.), 
ix, 282. 
Prindell, L. M., (p.s.n.), xxix, 194.. 
Prismatic stadia telescope. R. II 
Richards, (rev.), xiii, 212. 
Prizes, Boston Society of Natural 
History, S. Henshaw, ix, 409. 
Problems, of Devonian nomencla- 
ture, (Am. com.), ii, 245; in Iowa. 
S. Calvin. Mi, 25; Ditto. H. S. 
"Williams, iii, 230; locating fault- 
ed beds. E. H. Williams. Jr. 
(rev.), v, 250; in geophysics am 
geological history, G. K. Gilbert 
(abs.). xi, 137; Continental. G 
K. Gilbert, (rev.), xii, 118; Ple- 
istocene in Missouri, J. E. Todd 
(rev.), xiii, 216; of Geophysics' 
G. F. Becker, xxxv, 4. 
Proboscidean fossils of the Pleis- 
tocene in 111. and Iowa, J. A. 
Udden, (rev.), xxxvi, 258. 
Proctor, J. R.. (p.s.n.). v, 255; 
(obit.), xxxiii. 69. 
Production of secondary minerals 
a1 Shear-zones, C. Callaway, 
(rev.), iv. 310: of iron ores in 
1895. John Birkinblne, (rev.), 
xviii. 388 
Professional papers, (p.s.n). xxxi, 
64; 396; On hydroloev 
xxxi, 194; Atlas folios, xxxi, 25.".. 
Professor Wright's book. A ser- 
vice to science, N. H. Wincheli, 
xi, 19; loumans and the U. S. 
G. S., (ed. com.), xi, 342. 
Progress, of American Glacial ge- 
ology, (ed. com.), ix, 2(iU; in the 
geological survey of the Great 
.Lakes, W. Spencer, (abs.), xiv 
2(»4; Ditto, J. \Y. opencer, xiv. 
289; Investigation in Nuva Sco- 
tia, L. W. Bailey, (abs.), xiv. 
67; of vertebrate paleontology at 
the Am. Mus. Nat. Hist. O. P. 
Hay. xxxv, 31. 
Proof of the rising of land aroun<* 
Hudson Bay, R. Bell. (abs.) 
xvii, 99. 
Proposed examinations of the arid 
belts of S. Africa and S. Amer- 
ica, E. W. Hilgard, xxxiii, 394. 
Prosser, C. S., Thickness of the 
rocks of Western Central N. Y. 
vi, 199; Geological position of the 
Catskill group, vii, 351; Thick- 
ness of the Devonian and Silur- 
ian, (rev.), x, 257; (p.s.n.), x. 
261; (p.s.n.). xi, 217; Thicknes: 
ot the Devonian and Silurian, 
(rev.), xi, 411; (cit.), xiv, 201 
(p.s.n.), xiv, 340; Devonian sys- 
tem of eastern, Pa. ana N. Y.. 
(rev.), xv, 262; (p.s.n.), xvi, 268; 
(p.s.n.), xxiv, 134; Gas wells sec- 
tions, in Central N. Y., xxv, 131; 
Section of the Alloway, N. Y.. 
wellt xxv, 353; Specimen of 
Nematophyton in the N. Y. State 
Museum, xxix, 372; Richard Bur- 
ton Rowe, xxx, 128; Notes on 
the geology of eastern N. Y., 
xxxii, 380; (and J. W. Beede) 
Cottonwood Falls folio, (rev.). 
xxxiv, 262; (p.s.n.), xxxiv, 202; 
(and E. R. Cumings), Waverly 
formations of central Ohio, xxxiv, 
33:,; Permian formation of Kan- 
sas, xxxvi, 143. 
Protoconch of Orthoceras, J. M. 
Clarke, xii, 112. 
Protolenus fauna. (G. F. Matthew), 
(rev.), xvi, 200. 
Protosalvinia, B. W. Thomas, (p.s. 
n.), iii, 2S0. 
Protospongia rhenana, C. Schlu- 
ter, (rev.), xii, 335. 
Prutzman, Paul W., Chemistry of 
Calif. Petroleum, xxxv, 240. 
Psammichnites in the Cambrian. 
G. F. Matthew, ii, 1. 
Pseudo-cols, T. C. Chamberlin. 
(rev.), xiii, 217. 
Pseudomorphs from the Taconi'c 
region, W. H. Hobbs, x, 44. 
Pteraspidae 'and C'ephalaspidae, 
Structure of. W. Patton, (rev.), 
xxxiii, 325. 
Publications of B. F. S'humard, iv, 
4. 
Puerco formation. (Am. com.), ii, 
266; Fauna, W. D. Matthew, 
(rev.), xxi, 190. 
Pumpelly, Raphael, (p.s.n.), iii, 
400; Rock disintegration, relation 
to crystalline schists. (rev.), 
vii, 259, (cit.), viii. 255; (p.s.n.), 
xvi, 267; ecology of the Green 
