Blake, is. Phipps, cont f d 



47. 1856 e Review of a Portion of the Geological Map of 



the United States and British Provinces by 

 Jules Marcou. The Amer. Jour.8ci.and Arts (3), 

 vol. 33, pp. 383-388, 1856. 



48. 1856 f Report of the Geology of the Route, near the 



Thirty-second Parallel: Prepared from the 

 Collection and H a tas of Capt. Pope. Appen- 

 dix to Rept. by Brev.Capt, John Pope, Ex- 

 . . . ploration of a Route for the Pacific Rail- 



road near the Thirty-second Parallet of lorth 

 Latitude, ffcom the Red River to the Rio Grande. 

 Repta.Explo. and Surv* to Ascertain the Most 

 Practicable and Economic Route for s Railroad 

 from the Mississippi River to the Pacific Ocean 

 in 1853-1854, 33rd Congr., 3d sess., Sen.!*. 

 Doc.o.78, Appendix, 50 pp., maps, (1855) 1856. 



49. 1856 g Remarks upon the Geology of California from 



Observations in Connection with the U.S. Survey 

 and Exploration for a Railroad Route to the 



Pacific. Proc.Amer.Ae8oo.Adv.Sci. ,9th meet- 



* 



ing (Aug. ,1855), pp.00E-3S5, 1856* 



SO* 1856 h Report on the Geology of the Route (near the 



35th Parallel, explored by Lieut. A. w. Whipple, 

 1853-54). So. 1, General Report on the Geologi- 

 cal Collections; no. 3, Resume and Field notes 

 by Jules Marcou, geologist and mining engineer 

 to the expedition, with translation by Blake 

 (pp. 121-175) . 33rd Congr . ,8d sess . , Sen. Ex . 

 Doo.no. 78, Hepts. of Explo.and Surv. to Ascer- 

 tain the Most Practicable and Economical Route 

 for a Railroad from the Mississippi River to 

 the Pacific Ocean in 1853-54, vol.iii,pt.iv f 

 chaps, i-vlii, x, pp. 107-119, 12 1-184, 1856; 

 Bouse Ex. Doc* no. 91. 



51* 1807 i Geological Report, So*l t Itinineary, or Notes 



and General Observations upon the Geology of 

 the Route, chaps, vi-x, no. , Geology of Per* 

 tions of the Route, chaps 9 xi, xvi, xvii. 

 Part ii of Rept. bv tieut. R. S. Williaisson of 

 Explorations (1853) in California for Railroad 



