96 INDEX TO PUBLICATIONS OF U. S. GEOL. SURVEY. [bull. 215. 
E< >cene r< >cks; Nalieola series of Alabama Bull 43, pp 57-60, 70 
Nanafalia series of Alabama Bull 43, pp 51-57, 70 
of Alaska Ann 22, in, p 533 
of Arkansas Bull 184, p 42 
of California Bull 15, pp 9-10 
of Colorado, Spanish Peaks quadrangle GF 71, p 2 
of Louisiana Bull 184, pp 42, 43 
of Maryland, clays PP 11, pp 142-143 
of Nebraska, Camp Clarke quadrangle GF 87, p 2 
Scotts Bluff quadrangle GF 88, p 2 
of Oregon, Coos Bay quadrangle GF 73, p 2 
Port Orford quadrangle GF 89, p 3 
of South Dakota, Oelrichs quadrangle GF 85, p 4 
of Texas Bull 184, pp 42-43 
Austin quadrangle GF 76, p 6 
of Utah, coal field Ann 22, in, pp 453, 454 
of Virginia, Norfolk quadrangle GF 80, p 2 
of Washington, coal fields Ann 22, in, pp 484-485 
of States. (See, also, formation names under this heading. ) 
Pamunkey formation of Virginia . . GF 80, p 2 
Poison Canyon formation of Colorado GF 71, pp 2, 3. 
Puget formation of Washington, coal fields Ann 22, in, p 484 
Pulaski formation of Oregon GF 73, p 2 
Roslyn formation of Washington, coal fields .' Ann 22, in, p 485 
Tejon group of Pacific coast Bull 15, pp 9-10 
Unga beds of Alaska Ann 22, in, p 533 
White limestone of Alabama Bull 43, pp 19-25, 68 
Willspoint clays of Texas, Arkansas, and Louisiana Bull 184, p 42 
Woods Bluff series of Alabama Bull 43, pp 43-46, 69 
Yegua clays of Texas and Louisiana Bull 184, p 43 
Yentna beds of Alaska Ann 22, in, p 535 
Eocene system, definition of Ann 14, i, p 42 
Epidote, occurrence of MR 1901, p 762 
Equivalency of formations, discussion of , Bull 210, pp 117-123 
Erie formation of Kansas, flora of Bull 211 , p 1 10 
Erie glacial lobe, minor moraines of late Wisconsin stage in Mon xli, pp 619-672 
Erie and Ohio basins, glacial formations and drainage features of Mon xli 
Erosion. (See Degradation.) 
Eruptive rocks of Colorado, Leadville district Ann 2, pp 221-224, 226-228 
of Vermont, Mount Ascutney Bull 209, pp 36-89 
Erwin quartzite of Tennessee GF 90, p 5 
Eskridge shales of Kansas, character and fauna of Bull 211, p 55 
Esmeralda formation of Nevada Bull 208, p 19 
Esopus Creek, New York, flow of, measurement of WS 47, 
p 36; WS 65, pp 63-65; WS 76, pp 97-98 
pollution of WS 72, p 45 
quality of water of WS 76, p 80 
water powers on WS 65, p 66 
Essexite, analysis of, from Massachusetts, Salem Neck Bull 209, pp 41, 66 
Etowah River and tributaries, Georgia, flow of,' measurement of Ann 22, 
iv, p 193; WS 48, pp 160-161; WS 49, p 208; 
WS 63, p 180; WS 65, pp 275-276; WS 75, p 89 
Eulophoceratidse of the Cretaceous Mon xliv, pp 83-87 
Eureka quartzite of Nevada Ann 2, 
pp 22 (map), 27, 29; Bull S, pp 42-43; Bull 208, p 19 
