io4 
The - Imerican Geologist. 
December, L90i 
Stanton, (abs.)i xviii, 61; Two 
Islands, and wnat came of them, 
Condon, (rev.), xxxvi, 122; The 
Willamette meteorite, (ed. com.), 
xxxvi, 47, 250. 
Organic origin of chert, in Car- 
boniferous Of Inland. G. Hinde, 
(rev.), i, 121; Remains from the 
Littie River group, G. F. Mai 
thew. (rev.), xiv, 67. 
Organizing committee of the Int. 
Cong, geologists, (p.s.n.), vi, 100. 
Origin, glacial of Long Island, J. 
Bryson, ii, 136; Of the basins 
of the Great Lakes, J. \V. Spen- 
cer, (rev.), ii, 346; Of the lower 
stratified crystallines, iAm.com.), 
ii, 171 ; Of clil'fs, W. M. Davis, iii, 
14; Of Quartz in Basalt, Iddings. 
(rev.), iii, 52; Foliation in the 
Archean, A. C. Lawson, iii, 169; 
Ditto, A. \\ inchell, iii, 193; Ditto, 
A. C. Lawson, iii, 276; Of petro- 
leum, (ed. com.), iv, 371; Of 
the drift, James Geikie, (abs.), 
iv, 37(>; Drumlins, Warren Up- 
ham. (rev.), v, 61; Present out- 
lines of the Bermudas, J. W. 
Fewkes, v, 88; Red color of cer- 
tain formation*), I. C. Russell, 
(rev.), v, 110; Aqueous, of gold, 
(p.s.n.), vii, 389; Mountain 
ranges. T. M. Reade, viii, 277.: 
Iron ores by replacement of 
limestones. J. P. Kimball, vii, 
352; Of the Eozoon. (ed. com.), 
ix, 55; Gravel beneath the Muir 
glacier, I. C. Russell, ix, 190. Of 
iron ore of the Mesabi range. 
N. H. Winchell, x, 169; And 
Classification of theories of iron. 
H. V. Winchell, x, 277; Of Clin- 
ton iron ore, C. H. Smyth, Jr., 
(rev.), x, 122; Of parallel and 
intersecting joints, W. O. Cros- 
bv. xii, 368; Of igneous rocks, 
J. P. Iddings, (rev.), xii, 124; Of 
Peconic Bay and Shinnecock hills 
John Bryson, xii, 402; Maryland 
granites, C. R. Keyes, (rev.), 
xiii, 63; Of New Jersey green 
sands, \V. B. ('lark, (abs.), xiii, 
210; Of drumlins. R. S. Tarr, 
xiii, 393; Of anthracite, C. R. 
Keyes, xiii, 411; And nature of 
soils. X. S. Shaler, (rev.), xix, 
111; Of Novaculites and Quartz- 
ites. F. Rutley, (rev.), xiv, 253; 
Of Spheroidal basalt, (ed. com.), 
xiv, 321; Of Eskers, Warren Dp- 
ham, xiv, 403; And use of 
natural gas, at Manitou, William 
Striebly (rev.), xvi, 116; Of 
Arkansas Nbvaculies, L. S. Gris- 
wold. (rev.), xvi, 261; Of Iowa 
Lead and zinc deposits, A. G. 
Leonard, xvi, 288; Of conglom- 
erates, ( ;, I . ( I'ollie, (abs.). xvii, 
126; Of Anthracite, G. S. Gres- 
ley. xviii, 1; Of Laurentian lakes, 
and Niagara falls, Warren Dp- 
ham, xviii, 169; High terrace de- 
nOsits of the Monongahela River, 
I. (". White, (abs.), xviii, 227: 
368; Of the wind gap, F. B. 
Wright, xviii, 120; Of conglom- 
erates, T. C. Hopkins. (abs.), 
xviii, 230; Of the gypsum de- 
posits Of Kansas, I ',. I'. (.limS- 
ley, (abs.), xviii, 236; Of cen- 
tral Maryland granites, i\ k. 
Key, s. (rev.), xviii, 320; Of Peg- 
matite, Crosby and Fuller, xix, 
117; < .f certain Gneisses, I' . D. 
Adams, labs.), xx, 200; European 
loess, A. Penck, icit.). xx, 197; 
Crystalline rocks, G. M. Dawson, 
(cit.), xx, 275; Archean igneous 
rocks, X. ID Winchell, xxii, 2'.)'.t; 
Of corundum in North Carolina, 
J. 11. • Pratt, (rev.), xxii, 377: 
Of grahamite in Ritchie coun- 
ty. W. Vir., I. C. White, (rev.), 
xxiii, 101; And chemical com- 
position of petroleum. Sympo- 
sium, (abs.), xxiii, 326; Of cer- 
tain gold pocket deposits in 
Calif., O. H. Hershey, xxiv, 38; 
Of gold deposits in the isthmus 
of Panama, O. H. Hershey, xxiv, 
73; And composition of chromite, 
J. H. Pratt, (rev.), xxiv, 181; 
Of Paleotrochis, J. S. Diller, 
(rev.), xxiv, 182; Of grahamite, 
I. C. White, (rev.), xxiv, 253; 
Of Phenocrysts, W. O. Crosby, 
xxv, 299; Of Kaolin, H. Ries, 
(rev.), xxvii, 120; Of Nitrates in 
cavern earth, W. H. Hess, (rev.), 
xxvii, 122; Of fireclays, T. C. 
Hopkins, xxviii, 47; Of Pheno- 
crysts of Georgia, T. L. Watson, 
(rev.), xxviii, 58; Granite of the 
Pyrenees. A. Lacroix, (rev.), 
xxviii, 124; Australian iron ores, 
(ed. com.), xxviii, 24S; And dis- 
tribution of Minn, clays, C. P. 
Berkey, xxix, 171; Of eskers, W. 
O. Crosby, xxx, 1; Certain place 
names in D. S.. Henry Gannett, 
(rev.), xxxi, 186; Of the ocean 
basins on the planetesimal hypo- 
thesis, ('hamberlin. (abs.), xxxii, 
ID XVbular and planetesimal 
theories of the earth, Warren 
Dpham. xxxv, 212; The marine 
fauna of lake Tanganyika, W. H. 
Huddleston, (rev.), xxxv, 249: Of 
certain place names in the Dnited 
States. 2nd edition. H. Gannett, 
(rev.), xxxv, 393; Secondary of 
certain granites, R. A. Daly, 
(rev.), xxxvi, 312. 
Original micaceous cross-banding 
by current action. J. B. Wood- 
worth, xxvii, 281; Source of the 
I ake Superior Iron ores. J. E. 
Spurr, xxix, 335. 
Oriskany (hill near Washington, 
C. Curtice, iii, 223. 
Orizaba. Highest point in North 
America, (p.s.n.). xi, 42r,; Com- 
pared with Mt. St. Elias. A. 
Dindenkohl, xii, 213. 
Orrithoosis, (p.s.n.), i, 338. 
Orotaxis, a method of geologic cor- 
relation, C R. Keyes, xviii, 289. 
Orthoceras, The Protoconch, J. M. 
Clarke, xii, 112; Specific charac- 
ters, A. F. Foerste, xii, 232: And 
other cephalopods; Jaekels thesis 
on the mode of existence. R. 
Rudemann, xxxi, 199 
