WAKMAN] COAL. 77 
Coal field, Appalachian, southern; summary of knowledge.. -Ann 22, in, pp 227-263 
Coal field, bituminous, of Maryland; summary of knowledge.. Ann 22, in, pp l'01-214 
ot Pennsylvania; summary of knowledge Ann 22,- in, pp 127-214 
of Ohio; summary of knowledge Ann 22, in, pp 215-226 
Coal Held, Eastern Interior; summary of knowledge Ann 22, in, pp 2(15-305 
Coal tield, Northern Interior; summary of knowledge Ann 22, in, pp 307-331 
Coal Held, Southwestern; summary of knowledge .....Ann 22, in, pp 367-413 
Coal field, Triassic, of Atlantic coast Ann 22, in, pp 25-53 
Coalfield, Western Interior; summary of knowledge Ann 22, in, pp 333-366 
Coal fields of Alabama, production, etc., of Ann 22, in, p 13 
of Alaska; summary of knowledge Ann 22, in, pp 515-571 
of Arkansas, production, etc., of Ann 22, in, p 13 
of ( 'alifornia, production, etc., of Ann 22, in, p 13 
summary of knowledge Ann 22, in, pp 408-504 
of Colorado, production, etc., of Vnn 22, in, pp 12, 13 
summary of knowledge Ann 22, in. pp 427 139 
of Georgia, production, etc., of Ann 22, in, p 13 
of Idaho, production, etc., of Ann 22, in, p 13 
summary of knowledge Ann 22, in, pp 459-460 
of Illinois, production, etc., of Ann 22, in, p 13 
of Indian Territory, production, etc-., of Ann 22, in, p 13 
of Indiana, production, etc., of Ann 22, in, p 13 
of Indiana and Illinois, work in Bull 21 3, pp 284-293 
of Iowa, production, etc. , of Ann 22, in, p 13 
of Kansas, production, etc., of Ann 22, in, p 13 
of Kentucky, production, etc., of Ann 22, in, pp 12, 13 
of Maryland, production, etc., of Ann 22, in, p 12 
of Michigan, production, etc., of .Ann 22, in, p 13 
of Missouri, production, etc., of .Ann 22, in, p 13 
of Montana, production, etc., of Ann 22, in, p 13 
summary of knowledge Ann 22, in, pp 460-468 
of Nebraska, production, etc. , uf Ann 22, in, p 13 
of New Mexico, production, etc., of Ann 22, in, p 12 
summary of knowledge Ann 22, in, pp 449-453 
of North Carolina, production, etc., of Ann 22, in, p 12 
Triassic Ann 22, in, pp 43-51 
of North Dakota; summary of knowledge " Ann 22, in, pp 456-458 
of Ohio, production, etc., of Ann 22, in, p 12 
of Oregon, production, etc., of Ann 22, in, p 13 
summary of knowledge Ann 22, in, pp 505-512 
of Pacific coast; summary of knowledge Ann 22, in, pp 473-513 
of Pennsylvania, production, etc., of Ann 22, in, p 12 
anthracite, original content of Ann 22, in, pp 70-72 
of Rocky Mountains; summary of knowledge Ann 22, in, pp 415-471 
of South Dakota, production, etc., of Ann 22, in, p 13 
summary ot knowledge Ann 22, in, pp 458-459 
of Tennessee, production, etc., of Ann 22, in, p 13 
of Texas, production, etc., of Ann 22, in, p 13 
of Texas, north ; summary of knowledge Ann 22, in, pp 402-409 
of United States Bull 213, pp 257-269 
rank of, in area and production Ann 22, in, pp 12-13 
summary of knowledge Ann 22, in, pp 7-24 
of Utah, production, etc., of Ann 22, in, p 13 
summary of knowledge Ann 22, in, pp 453-456 
