288 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1921. 



Aspen, Colo., Monograph 31, U. S. Geol. Survey. 



Austin quadrangle, Texas, Folio 7G, U. S. Geol. Survey. 



Bear Paw Mountains, Mont., American Journal Science, 1S9G. 



Bentley district, Arizona, Bull. 5S0-D, U. S. Geol. Survey. 



Bidwell Bar quadrangle, California, Folio 43, U. S. Geol. Survey. 



Big Belt Mountains, Mont. 



Bighorn Mountains, Wyo., U. S. Geol. Survey, Prof. Paper 51. 



Big Trees quadrangle, California, Folio 51, U. S. Geol. Survey. 



Bisbee quadrangle, Arizona, Folio 112, U. S. Geol. Survey. 



Bitterroot Mountains, Idaho, U. S. Geol. Survey, Prof. Paper 27. 



Blue Mountains, Oreg., 22nd Aun. Rep. U. S. Geol. Survey, pt. 2. 



Bohemia district, Oregon, 20th Annual Report U. S. Geol. Survey, part 3. 



Boise quadrangle, Idaho, Folio 45, U. S. Geol. Survey. 



Boston Basin, Mass., Geol. of Boston Basin, 1893. 



Boulder, Mont., 21st Annual Report, U. S. Geol. Survey, part 2. 



Bradshaw Mountains, quadrangle, Arizona, Folio 12G, U. S. Geol. Survey. 



Breckenridge district, Colorado, U. S. Geol. Survey, Prof. Paper No. 75. 



Bullfrog district, Nevada, Bull. U. S. Geol. Survey, No. 407. 



Butte district, Montana, Folio 3S, U. S. Geol. Survey. 



Castle Mountain, Mont., Bull. 139, U. S. Geol. Survey. 



Central City, Colo. 



Chico area, California, 17th Annual Report, U. S. Geol. Survey, part 1. 



Cid mining district, North Carolina, Bull. 22, N. C. Geol. Survey. 



Cinnabar deposits, Idaho and Montana, Bull. 3S4, U. S. Geol. Survey. 



Clifton quadrangle, Arizona, Folio 129, U. S. Geol. Survey. 



Coeur d'Alene district, Idaho, Prof. Paper 82, U. S. Geol. Survey. 



Colorado Springs, quadrangle, Colorado, Folio 203, U. S. Geol. Survey. 



Colville Reservation, Wash., Bull. 677, U. S. Geol. Survey. 



Contact and Jarbidge districts, Nevada, Bull. 497, U. S. Geol. Survey. 



Crater Lake, Oreg., Prof. Paper 3, U. S. Geol. Survey. 



Cripple Creek, Colo., 10th Annual Report, U. S. Geol. Survey and Prof. Paper 54. 



Custer County, Colo., 17th Annual Report, U. S. Geol. Survey. 



Dan River coal field, North Carolina, Bull. 471-B, U. S. Geol. Survey. 



Darwin district, California, Bull. 5S0-A, U. S. Geol. Survey. 



Davidson County, N. C, (see Cid Mining Disk). 



Delamar, Idabo (see Silver City). 



Deming quadrangle, New Mexico, Folio 207, U. S. Geol. Survey. 



Denver Basin, Colo., Monograph 27, U. S. Geol. Survey. 



Dillon, Mont., Bull. 574, U. S. Geol. Survey. 



Downieville quadrangle, California, Folio 37, U. S. Geol. Survey. 



Eastport quadrangle, Maine, Folio 192, U. S. Geol. Survey. 



Elkhorn district, Montana, 22d Annual Report, U. S. Geol. Survey. 



Ellensburg quadrangle, Washington, Folio 86, U. S. Geol. Survey. 



Ellijay quadrangle, Georgia, North Carolina, Tennessee, Folio 1S7, U. S. Geol. 



Survey. 

 Elliott County. Ky„ Bull. 38, U. S. Geol. Survey. 

 Elliston phosphate field, Montana. 



Encampment Special, Wyo., Prof. Paper 25, U. S. Geol. Survey. 

 Engineer Mountain quadrangle, Colorado, Folio 171, U. S. Geol. Survey. 

 Eureka district, Nevada, Monograph 20 and 3d Annual Report, U. S. Geol. 



Survey. 

 Flathead Indian Reservation, Mont. 

 Fort Benton quadrangle, Montana, Folio 55, U. S. Geol. Survey. 



