180 A Bibliography of the Geology, etc., of California. 



1880. Map showing the extent of the hydraulic mining oper- 

 ations near Gold Run, Dutch Flat, Little York, You Bet, 

 Chalk Bluffs, Red Dog, Hunt's Hill, and Quaker Hill, on 

 Bear River, and Canon, Steep Hollow, and Greenhorn 

 creeks ; by W. H. Pettee and A. Bowman. Scale, 1 m. to 

 4 in. In Mem. Mus. Comp. Zool., vol. 6. Cambridge, 

 1880. 



1880. Map of the Smartsville gravels; by A. Bowman. 

 Scale, 1 m. to 7 in. In Mem. Mus. Comp. Zool., vol. 6. 

 Cambridge, 1880. Plate M. 



1880. Diagram showing the position of the Table ^lountain 

 lava flow of Tuolumne County ; by J. D. Whitney. Scale, 

 2 m. to 1 in. In Mem. Mus. Comp. Zool., vol. 6. Cam- 

 bridge, 1880. Plate D. 



1880. Plan of the Spanish Peak gravel deposit; by J. D. 

 Whitney. In Mem. Mus. Comp. Zool., vol. 6. Cam- 

 bridge, 1880. Plate K. 



1880. Map of the mining district adjacent to Forest City; by 

 J. D. Whitney. Scale, 1 m. to 1 in. In Mem. Mus. 

 Comp. Zool., vol. 6. Cambridge, 1880. Plate Q, p. 432. 



1880. Map to accompany the description of a portion of the 

 region drained by Slate, Canon, and Goodyear creeks in 

 Sierra and Plumas counties; by J. D. Whitney. Scale, 2 

 m. to 1 in. In Mem. Mus. Comp. Zool., vol. 6. Cam- 

 bridge, 1880. Plate R, p. 444. 



1880. Map of Poverty Hill Scale's Diggings, and vicinity; 

 by C. W. Hendell. Scale, 1 m. to 1.5 in. Accompanying 

 The Auriferous gravels of the Sierra Nevada, by J. D. 

 Whitney. Mem. Mus. Comp. Zool., vol. 6. Cambridge, 

 1880. 



1880. Sketch map showing the distribution of the volcanic 

 and gravel formations over a portion of Placer and El 

 Dorado counties. Accompanying The Auriferous gravels 

 of the Sierra Nevada, by J. D. Whitney. Mem. Mus. 

 Comp. Zool., vol. 6. Cambridge, 1880. 



