weeks.] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1901. 121 
Iowa — Continued . 
Occurrence of gold and other mineral prod- 
ucts in Iowa, Calvin, 101. 
Old channels of the Mississippi, Leverett, 494. 
Jura. 
New England. 
Newark system of the Pomperaug Valley, 
Hobbs, 376. 
Rocky Mountain region. 
Dinosaur beds of the Grand River Valley, 
Riggs, 650. 
Geology of Black Hills, Darton, 198. 
Jurassic stratigraphy in Wyoming, Loomis, 
498. 
La Plata folio, Cross, 176. 
Morrison formation, Lee, 487. 
Triassic and Jurassic strata of the Black 
Hills, Hovey, 395. 
Kansas. 
Age of Red Beds, Adams, 6. 
Age of th" Red Beds, Beede, 56. 
Americas limestone, Smith, 706. 
Concretions of Ottawa County, Bell, 59. 
Dakota Cretaceous of Kansas and Nebraska, 
Gould, 301. 
Dakota sandstone in Washington County, 
Charles, 133. 
Flint hills of Kansas, Mead, 540. 
Fossils from the Red Beds, Gould, 297. 
Fossil plants in the Permian, Sellards, 689. 
Galena-Joplin lead and zinc district, Ha- 
worth, 350. 
High plains and their utilization, Johnson, 
404. 
Kansas coal mining, Crane, 168. 
Kansas mines and minerals, Grimsley 329. 
Kansas-Oklahoma-Texas gypsum hills, Gould, 
300. 
New turtle from the Kansas Cretaceous, Wil- 
liston, 837. 
Oil and gas fields of western interior and 
Gulf coasts, Adams, 7. 
Petroleum and natural gas, H&worth, 351. 
Pottawattamie and Douglas formations, 
Rogers, 656. 
Southern extension of the Marion and Wel- 
lington formations, Gould, 302. 
Tseniopteris of the Permian, Sellards, 688. 
Tertiary springs of Kansas and Oklahoma, 
Gould, 299. 
Kentucky. 
Fluorspar mines of Kentucky and Illinois, 
Burk, 96. 
Silurian and Devonian limestone, Foerste, 
278. 
Maine. 
Andesites of the Aroostook volcanic area, 
Gregory, 322. 
Composition and occurrence of pollucite, 
Wells, 809. 
Geological study of the Fox Islands, Smith, 
707. 
Glacial pot holes in Maine, Manning, 519. 
Minerals at Haddam, Martin, 520. 
Shells of the marl deposits of Aroostook 
County, Nylander, 571. 
Maryland. 
Basic rocks of northeastern Maryland, Leon- 
ard, 491. 
Eocene arthropoda, Ulrich, 750. 
Eocene bryozoa, Ulrich, 751. 
Eocene coelenterata, Vaughan, 765. 
Eocene deposits of Maryland, Clark and Mar- 
tin, 140. 
Eocene echinodermata, Clark and Martin, 143. 
Eocene mollusca, Clark and Martin, 141. 
Eocene molluscoidea (brachiopoda), Clark 
and Martin, 142. 
Eocene pisces, Eastman, 251. 
Eocene plantee, Hollick, 387. 
Eocene protozoa, Bagg, 35. 
Names for the formations of the Ohio coal 
measures, Prosser, 632. 
Occurrence of zoisite and thulite, Bibbins, 70. 
Paleozoic Appalachia, Willis, 831. 
Paleozoic formations of Allegany County, 
Prosser, 631. 
Physiographic features, Abbe, 1. 
Systematic paleontology, Eocene reptilia, 
Case, 120. 
Washington folio, Darton and Keith, 200. 
Massachusetts. 
Amygdalodial melaphyres of the Boston ba- 
sin, Crosby, 173. 
Concretions from the Champlain clays, Shel- 
don, 695. 
Geological history of Charles River, Clapp, 
139. 
Geology of central Cape Cod, Julien, 409. 
Lead and silver mines, Newbury, Hovey, 
397. 
Medford dike area, Wilson, 838. 
Micaceous cross-banding of strata, Wood- 
worth, 857. 
Reconnaissance of the Elizabeth Islands, 
Hollick, 385. 
Representatives of pre- Wisconsin till, Fuller, 
288. 
Structural relations of amygdaloidal mela- 
phyre, Burr, 97. 
Mexico. 
Cretaceous of Obispo Canyon, Dumble, 245. 
Distribucion geografica y geologica de los 
criaderos minerales, Aguilera, 8. 
Ein Profil durch den Ostabfall der Sierra 
Madre Oriental, Bose, 72. 
Geographic and geologic features of Mexico, 
Hall, 373. 
La industria minera, Ordonez, 574. 
Las rhyolitas, Ordonez, 573. 
Mining industry of Pachuca, Ordonez, 575. 
Mining in Lower California, Lowry, 500. 
Oyster shells in volcanic deposits, Dumble, 
246. 
Sierra Mojada and its ore deposits, Malcolm- 
son, 518. 
Silver-bearing veins of Mexico, Halse, 335. 
Michigan. 
Geologic section in Alpena and Presque Isle 
counties, Grabau, 307. 
Iron-ore deposits of the Lake Superior region, 
Van Hise, 759. 
