weeks] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1901. 115 
Economic products described — Continued 
Water supply, Babcock, 34. 
Water supply, Calvin, 100. 
Water supply, Darton, 198. 
Water supply, Darton and Keith, 200. 
Water supply, Gould, 299, 301. 
Water supply, Hills, 374. 
Water supply, Johnson, 404. 
Water supply, McCaslin, 514. 
Water supply, Nutter, 570. 
Water supply, Russell, 662. 
Water supply, Udden, 749. 
Water supply, Upham, 752. 
Water supply, Woolman, 859. 
Witherite, Merrill, 545. 
Wolframite and Hubnerite, Merrill, 545. 
Wurtzillite, Merrill, 545. 
Uintaite; gilsonite, Merrill, 545. 
Uraninite; pitchblende, Merrill, 545. 
Yttrotantalite, Merrill, 545. 
Zinc, Haworth, 350. 
Zinc, Keith, 411. 
Zinc, Phillips, 610. 
Zircon, Merrill, 545. 
Geologic formations, description and synonymy. 
Abraru's formation, Pre-Cretaceous, Califor- 
nia, Hershey, 362. 
Agoniatites limestone, Devonian, New York, 
Clarke, 145. 
Aftonian, Pleistocene, Iowa, Udden, 748. 
Agua Dulce formation, Pleistocene, Panama, 
Hershey, 365. 
Albany granite, New Hampshire, Hawes,349. 
Albertan, Pleistocene, Iowa, Udden, 748. 
Alleghany formation, Carboniferous, Mary- 
land, Prosser, 631,632. 
Americus limestone, Kansas, Smith, 706. 
Antigua formation = White limestone, West 
Indies, Spencer, 719, 721. 
Apishapa formation, Cretaceous, Colorado, 
Hills, 374. 
Aquia formation or stage. Eocene, Mary- 
land. Includes Piscataway and Paspo- 
tansa members or substages. Clark and 
Martin, 140, 
Arisaig formation, Silurian, Canada, Ami, 22. 
Arizona formation, included in Huronian, 
Blake, 62. 
Atoka formation, Carboniferous, Indian Ter- 
ritory, Taff, 736. 
Azuero formation, Panama, Hershey, 365. 
Bays formation, Silurian, Tennessee, Keith, 
411. 
Beacon Hill formation, Miocene, New Jersey, 
Smock, 712. 
Bedford, Carboniferous, Indiana and Ohio, 
Siebenthal, 698. 
Bedford limestone, Carboniferous, Indiana, 
Cumings, 178. 
Bedford shale, Carboniferous, Ohio, Prosser, 
629, 630. 
Berea grit, Carboniferous, Ohio, Prosser, 629. 
Berkeleyan series, California, included in 
Pliocene, Lawson and Palache, 484a. 
Beulah shales, Jurassic, Black Hills, Darton. 
198. 
Geologic formations, description and synony- 
my—Continued. 
Black Tail Deer Creek beds, included in 
White River beds, Tertiary, Montana, 
Douglass, 234a. 
Boggy shale, Carboniferous, Indian Territory, 
Taff, 736. 
Bragden formation, Pre-Cretaceous, Califor- 
nia, Hershey, 362. 
Braxton formation, Carboniferous, West Vir- 
ginia, Campbell, 105. 
Briceville shale, Carboniferous, Tennessee, 
Keith, 411. 
Bridgeton formation, New Jersey, Smock, 712. 
Buchanan gravels, Pleistocene, Iowa, Nor- 
ton, 568. 
Buchanan gravel, Pleistocene, Iowa, Udden, 
748. 
Calciferous (Beekmantown) limestone, Ordo- 
vician, New York, Cushing, 185. 
Calderwood's Neck schists, Maine, Smith, 707. 
Calvan sandstone, Carboniferous, Indian Ter- 
ritory, Taff, 736. 
Campan series, Pliocene, California, Lawson 
and Palache, 484a. 
Caney shales, Carboniferous, Indian Terri- 
tory, Taff, 736. 
Cape May formation, New Jersey, Smock, 712. 
Carlile formation, Cretaceous, Black Hills, 
Darton, 198. 
Carolina gneiss, Archean, Piedmont region. 
Darton and Keith, 200. 
Cassada Garden gravels, West Indies, Spencer, 
719. 
Cathead limestone, Ordovician, Canada, 
Dowling, 236. 
Charleston sandstone, Carboniferous, West 
Virginia, Campbell, 105. 
Chattanooga black shale, Devonian, Ken- 
tucky and Tennessee, Foerste, 278. 
Chattanooga shale, Devonian, Tennessee, 
Keith, 411. 
Chengwatana series, Minnesota, Hall, 332. 
Chesapeake formation, Tertiary, Atlantic 
coast region, Darton and Keith, 200. 
Chickachoc chert lentil, Carboniferous, In- 
dian Territory, Taff, 736. 
Chickamauga limestone, Silurian, Tennessee, 
Keith, 411. 
Clarno formation, Tertiary, Oregon, included 
in Eocene, Merriam, 542, 543. 
Clear Creek formation, Pre-Cretaceous, Cali- 
fornia, Hershey, 362. 
Clinch sandstone, Silurian, Tennessee, Keith, 
411. 
Clinton, Silurian, New York, Grabau, 306. 
Clinton formation, Silurian, Maryland, Pros- 
ser, 631. 
Clinton limestone, Silurian, Kentucky and 
Tennessee, Foerste, 278. 
Coaledo formation, Eocene, Oregon, Diller, 
231. 
Coggan limestone, Devonian, Iowa, Norton, 
568. 
Columbia formation, Pleistocene, Atlantic 
coast region, Darton and Keith, 200. 
Columbia lava, Oregon, Merriam, 542. 
