The American Geologist. December, 1905. 
xxiii, 93; of the Laramie in Ne- 
braska, C. A. Fisher, xxx, 315; Of 
natural gas in Findlay, O., (p.s.n.). 
i, 65. 
Discrimination of glacial accumula- 
tion and invasion, Warren Up- 
ham, (abs.), xv. 200. 
Discussion of the terms rock- 
weathering, serpentinization, and 
hydrometamorphism, G. P. Mer- 
rill, xxiv, 244. 
Disintegration of diabase at Med- 
ford, G. P. Merrill, (abs.), xvii, 
91. 
Dislocations of the earth's crust, 
Margerie and Hein, (rev.), II, 34S; 
Tertiary of the Atlantic coast, N. 
S. Shaler, (abs.), xiii, 143; In the 
Atlantic plain and their causes, A. 
Hollick, (abs.). xiv, 197; 
Dismal swamp district, Virginia, N. 
S. Shaler, (rev.), ix, 206. 
Dissection of the Ural mountains, 
F. P. Gulliver, (abs.), xxii, 253. 
Disseminated lead ores of south- 
eastern Missouri, A. Winslow, 
(rev.), xix, 63. 
Distribution of certain Loess fossils, 
C. R. Keyes, iv, 119; Of stone im- 
plements in the tide-water coun- 
try, W. H. Holmes, (rev.), xi, 
20S; Of earthquakes in the United 
States, N. S. Shaler, (rev.), xiv, 
396; Of land and fresh water 
mollusks of the West Indian re- 
gion, C. T. Simpson, (rev.), xv, 
261; Of iron oxide, I. J. Wistar, 
(abs.), xvii, 261; Of Cambrian 
and Silurian in Siberia, Baron 
Toll, (rev.), xix, 138; Of vanadi- 
um and molybdenum in the 
United States, Hillebrand, (rev.), 
xxii, 380; Of metallic wealth in 
Arizona, W. P. Blake, (rev.), 
xxiii, 125; Of brachiopoda in the 
Arnheim beds, A. F. Foerste, 
xxxvi, 244; 
District of Columbia, Oriskany 
drift, Cooper Curtice, Hi, 223. 
Diuturnal theory of the earth, Wm. 
Andrews, (rev.), xxv, 50. 
Diversity of the glacial drift, War- 
ren Upham, (abs.), xiii, 223. 
Divisions of the Ice age in the Unit- 
ed States and Canada, C. H. 
Hitchcock, xv, 330. 
Divining rod, Mechanical action of, 
M. E. Wadsworth, xxi, 72; 
Dodge, James A., Anthracite coal, 
Bow river, i, 172; (and N. H. 
Winchell), Kiowa meteorite, v, 
309; Ditto, vi, 370. 
Dodge, R. E., River terraces (rev.), 
xiv, 397; (p.s.n.), xvii, 263; Pene- 
plains of eastern Tennessee, 
(abs.), xvii, 264; Scientific geog- 
raphy in education, (abs.), xxl, 
201; (p.s.n.), xxvi, 259; New York 
Academy of Sciences, xxviii, 329; 
Ditto, xxix. 127; Ditto, xxix. 320; 
Elementary geography, (rev.), 
xxxiv, 197; Advanced geography, 
(rev.), xxxv, 181. 
Dolomytes of eastern Iowa, K. 
Knight, xxxiv, 64. 
Don river in southeastern Russia, 
(rev.), xxxiv, 121. 
Dorpat university, (p.s.n.), xii, 131. 
Doremus, C. A., (p.s.n.), xx, 68. 
Dotsero volcano, Colorado, Arthur 
Lakes, v, 40. 
Double Mountain section, Dumble 
and Cummins, ix, 347. 
Douglas, James, Famous copper 
mines of Spain, (abs.), xxix, 192; 
(p.s.n.), xxxiii, 395. 
Dowling, D. B., Red Lake, Be- 
n us river, (rev.), xvili, 389. 
Dragons of the air, H. G. Seeley, 
(rev.), xxviii, 323; 
Drainage systems of New Mexico, 
R. S. Tarr, v. 261; Of the Carbon- 
iferous area of Michigan, E. H. 
Mudge, xiv, 301; Modifications and 
their interpretation, M. R. Camp- 
bell, (abs.), xvii, 98; Trellised in 
the Adirondacks, Brigham, xxl, 
219; Peculiarity in Androscoggin 
county, Maine, H. T. Burr, xxiv, 
369; Features of southern cen- 
tral New York, (abs.), xxxv, 52. 
Drake, N. F., (p.s.n.), xxi, 134; 
Coal fields around Tse Chou, Chi- 
na, (rev.), xxviii, 260; 
-rane colliery, Pa., (p.s.n.). Mi. 21". 
Drayson, Gen.. Cause of Glacial 
periods, (p.s.n.), xi, 63. 
Dresser. J. A., Petrography of Mt. 
Orford, xxvii. 14; of Shefford Mt., 
xxviii. 203. 
Drift deposits, a part of the Pleis- 
tocene. (Am. com.), ii, 296; Of 
Long Island, J. Bryson, xxii, 245. 
Drift of the North German low- 
lands, R. D. Salisbury, ix. 294; 
Deposits of Germany, J. Bryson, 
x, 132; Succession of parts, R. 
Bell, (abs.), xi, 174; Englacial, 
Warren Upham, xii, 36; In S. W. 
Minnesota, N. W. Iowa, H. F. 
Bain, (abs.), xxi, 136; Of north- 
western Iowa, H. F. Bain, xxiil, 
168; In the Dakotas, Warren Up- 
ham, xxxiv, 151. 
Driftless area of the upper Missis- 
sippi, Chamberlin and Salisbury, 
(rev.), i, 122. 
Drift mounds near Olympia, Wash., 
G. O. Rogers, xi, 393; Ditto, Bry- 
son, xii, 127; Ditto, Upham, xxxiv, 
203. 
Drumlins, Structure of, W. Upham, 
(rev.), v, 61; Conditions of accu- 
mulation, W. Upham, Cabs.), x, 
218: Ditto, x, 339: Osar kame for- 
mation, T. C. Chamberlin. (rev.). 
xii, 122; Madison type, Upham, 
(abs.). xiii, 222; Channels on, 
caused by glacial streams. G. H. 
Barton, (abs.), xiii, 224; Origin of, 
R. S. Tarr, xiii. 393; Accumula- 
tion, Warren Upham, xv. 194; 
And marginal moraines of i^e 
sheets, Upham, (abs.), xvi, 237: 
