434 
INDEX 
by Diminishing Rate of Earth’s 
Rotation, by C. Keyes, 87 
Malcolmson, J. W., cited, 387 
Malone, Early Cretacic, 194 
Mammoth, Lena, 394 
Man, Glacial, in America, 107 
Mansfield, G. R., mention, 43 
Manson, M., Geological Climate, 301 
Manzanan series, 429 
Maquoketan series in Missouri, 135 
Marcellus shale in Missouri, 307 
Marine Eocene of Mississippi em- 
bayment, 75 
Marine fossils in Peter sandstone, 
244 
Marine Origin of Boraciferous Ter- 
ranes, by C. Keyes, 403 
Markagunt plateau, 215 
Marne battlefield, geology, 52 
Marquettan fossils, 327 
Mars, comparison with Earth, 268; 
Earth’s future, 267; seasonal 
changes, 270 
Marvine, A. R., cited, 26 
Mass movement of rocks, 84 
Matthew, W. D., cited, 180; Phyle- 
tic Relations of Lance Verte¬ 
brates, 68 
Maya peneplain, 361^ 
Mechanism of laccoliths, 210 
Meek, F. B., cited, 36, 308 
Meek, S. E., work, 154 
Meekoceras fauna, 190 
Megalonyx, skeleton in Kentucky, 
108 
Mendoza Precordillera, 417 
Mentality, Geological, in Making, 
by C. Keyes, 53 
Merwin, H. E., quoted, 199 
Mesabi, East, ores, 337 
Mesozoic age of Lance beds, 65; 
Union beds, 65 
Metchnikoff, E., quoted, 14 
Metalliferous Limestone, 253 
Metasomatic replacement in vadose 
zone, 390 
Mexico, desert ranges, 79 
Mid Ordovicic Ash in Tennessee, 
by W. A. Nelson, 251 
Miller, A. M., Glacial Man in Am¬ 
erica, 107 
Miller, B. L., cited, 375 
Miller, J. S., mention, 77 
Minas Geraes celt, 202 
Mineralogical geology, 399 
Minimum Span of Isostatic Effect, 
by C. Keyes, 79 
Mining Geology, notes, 335 
Mining industry, venerable, 161 
Minnesotan series, taxonomy, 245 
Mississippi embayment, marine 
Eocene, 75 
Mississippian series, proposed, 39 
Missouri, Dakotan sandstone, 56; 
Grassy shale, 301; Muscogee 
shales, 248; Paleozoic faunas, 35; 
Peter sandstone, 289; Siluric 
formations, 131 
Moesta, A. F., cited, 210, 390, 392 
Montana, Lanc€ series, 71 
Moricke, W., cited, 390 
Mossbach, E., cited, 371 
Most Critical Episode in Evolution, 
by W. K. Brooks, 121 
Most Productive Field in Historical 
Geology, by C. Keyes, 319 
Mountain of gold, 335 
Mueller, J., mention, 77 
Murchison’s Siluria, passing, 233 
Muscogee Shales, by C. Keyes, 248 
My Last Meeting with Gilbert, by 
C. Keyes, 56 
Naturai, bridges, genesis, 219 
Natural Bridges National Park, 223 
Natural Bridges, Utah, by F. J. 
Pack, 213 
Nature of rock mass-movement, 84 
Nature of Vadose Deposition, by 
C Keves 379 
Navidad^ beds of Chile, 22 
Nebraska, peccary, 357; Tertic con¬ 
glomerate 
Negritos formation of Peru, 22 
Nelson, W. A., m:ention, 75 
Nephrite, analysis, 200; optical 
properties, 199; specific gravity, 
199 
Nephrite Celt from Bahia, Brazil, 
by H. S. Washington, 198 
Neumayer, M., cited, 28 
Nevada, borate deposits, 341; bor¬ 
ates, 402; depth of vadose zone, 
282 
New Borate Field in Nevada, by C. 
Keyes, 343 
New Mexico, coal of Madrid, 209; 
Carbonic province, 425; depth of 
vadose zone, 282; Gold moun¬ 
tains, 335; laccoliths, 109; Silver 
Hill, 352; summit plain of Rock¬ 
ies, 359 
New Mexican Laccolithic Struc¬ 
tures, by C. Keyes, 109 
