WEEKS.] 
PETROLOGY, AND MINERALOGY FOR 1892-1900. 
61 
Devonian — Continued. 
Mississippi Valley region — Continued. 
Paleozoic formations, Weller, 6003. 
Paleozoic sediments in Arkansas, Branner, 533 
Paleozoic strata of Iowa, Norton, 4117. 
Phosphate deposits of Arkansas, Branner, 535, 
540. 
Relation of Devonian and Carboniferous, 
Keyes, 3114. 
Report upon Greene County, Mo., Shepard, 
4946. 
State Quarry limestone, Calvin, 707. 
Sweetland Creek beds, Udden, 5518. 
Waldron shale and its horizon in Decatur, 
Bartholomew, Shelby, and Rush counties, 
Ind, Price, 417:;. 
Bocky Mountain region. 
Absaroka folio, Wyoming, Hague, 2236. 
Castle Mountain district, Weed and Pirsson, 
5935. 
Devonian fossils from southwestern < 'olorado, 
Girty, 2039. 
Devonian in southwestern Colorado, Spencer 
and Girty, 5117. 
Devonian strata in Colorado, Spencer, >11S. 
Fort Benton folio, Montana, Weed. 5945. 
Geology of Gallatin Mountains, Wyoming, 
Iddings and Weed, 2852. 
Geology of Judith Mountains, Weed and 
Pirsson. 5942. 
Geology of Sonora, Mexico, Dumble, 1573. 
Geology of Sou tb Dakota, Todd, 5407. 
Geology of Teton Range, Wyoming, [ddings 
and Weed, 2853. 
Geology of the Little Belt Mountains. Weed, 
5953. 
Geology of the Little Rocky Mountains. Wee,] 
and Pirsson, 5939. 
Geology of the Rico Mountains, Colorado, 
Cross and Spencer, 1206. 
Geology of the Rocky Mountains, Coleman, 
1030. 
Little Belt Mountains folio, Montana. Weed, 
5946. 
Livingston folio, Iddings and Weed, 2831. 
Paleozoic section of Three Forks, Peale, 1264. 
Sedimentary rocks, Weed. :> ( .)30. 
Three Folks folio, Peale, 4267. 
Great Basin region. 
Geology of Mercur mining district, Utah, 
Emmons, 1704. 
Sierra Nevada and Pacific coast region. 
Devonian fossils in Carboniferous strata, 
Williams, H. S., 6174. 
Devonian rocks in California, Diller and Schu- 
chert, 1501. 
District of Columbia. 
Disintegration of the granitic rocks of the 
District of Columbia, Merrill, G. P., 3952. 
Geographic development, McGee, 3875. 
Dynamic geology. 
A geological romance, Udden, 5510. 
A rock fissure, Gilbert, 1997. 
A studyof Bird Mountain, Vermont, Dale, 1257. 
A study of vein formation, Lakes, 3324. 
Absaroka folio, Wyoming, Hague, 2236. 
Address as president, Lapworth, 3403. 
Dynamic geology— Continued. 
Address to Geographical section, Geikie, J., 
1960. 
Age of California coast ranges, Ransome, 4537. 
Age of igneous rocks of Yellowstone Park, 
Hague, 2235. 
Age of Niagara Falls, Wright, 6520. 
Age of the California Coast ranges, Fairbanks, 
1756. 
Agencies which transport materials, Salis- 
bury, 4758. 
Antecedent Colorado, Jefferson, 2902. 
Ants as geologic agents in the Tropics, Bran- 
ner, 549. 
Appalachian type of folding in the White 
Mountain range, California, Walcott, 5798. 
Archean-Cambrian contact, Colorado, Crosby. 
1168. 
Artificial geyser, Graham, 2093. 
Aspects of erosion, Smith, 5063. 
Astronomical conditions favorable to glacia- 
tion, Becker, 334. 
Attempt to test the nebular hypothesis, Cham- 
berlin, 846. 
Auriferous gravels of the Sierra Nevada, 
Lindgren, 3532. 
Bacteria and the decomposition of rocks, 
Branner, 536. 
Baja California, geology of, Lindgren, 3514. 
Baraboo quartzite ranges, Van Hise, 5686. 
Barbados, geology of, Jukes-Brown and Har- 
rison, 2946. 
Beach cusps, Jefferson, 2904. 
Blue Mountain, geologist at, Walcott, 5785. 
Bohemia mining region of western Oregon, 
Diller, 1513. 
Boundary between Potsdam and pre-Cam- 
brian, New York, Gushing, 1247. 
Bristol folio, Virginia-Tennessee, Campbell, 
740. 
Buried river channels in Iowa, Gordon, 2062. 
Calcareous concretions of Kettle Point, Lamb- 
ton County, Ontario, Daly, 1287. 
Cambrian time, North American continent 
during, Walcott, 5782. 
Canadian earthquakes, Dawson, 1440. 
Carbon dioxide of the ocean and atmos- 
phere, Tolman, 5440. 
Castle Mountain district, Weed and Pirsson, 
5935. 
Catoctin belt, Keith, 2959. 
Cenozoic geology of the middle Atlantic 
slope, Darton, 1307. 
Central Wisconsin base level, Van Hise, 5700. 
Chalfont fault rock, Lyman, 3612. 
Champlain submergence, Fuller, 1901. 
Champlain submergence, Taylor, 5355. 
Changes of level in Bermuda Islands, Tarr, 
5321. 
Changes of level in Mexico, Hull, 2804. 
Changes of level in Mexico, Spencer, 5148. 
Characteristics of the Ozark Mountains, 
Keyes, 3087. 
Chilhowee Mountain, geology of, Keith, 2957. 
Cincinnati Silurian island, Miller, 3986. 
Clay veins vertically intersecting coal meas- 
ures, Grcsley, 2181. 
