FIELDWORK OF THE UNITED STATES 



GEOLOGICAL SURVEY FOR THE 



SEASON 1902 



THE following assignments of 

 geologic and paleontologic par- 

 ties of the United States Geo- 

 logical Survey have been made for the 

 present field season: 



Pacific Coast. — Dr J. C. Branner will 

 continue areal surveys on the Santa 

 Cruz quadrangle, California. 



Mr J. S. Diller will complete the areal 

 and economic survey of the Redding 

 quadrangle, California, and make a 

 reconnoissance of the Klamath Moun- 

 tains. He will be assisted by Dr Geo. 

 B. Richardson. 



Dr Geo. F. Becker will continue the 

 supervision of the Division of Phj'sical 

 and Chemical Research and the prepa- 

 ration of a report embodying his inves- 

 tigations on the conditions of gold depo- 

 sition in the Mother Lode of California. 



Dr T. W. Stanton will continue a 

 general supervision of the paleontologic 

 work of the Survey, and will carry on 

 fieldwork in cooperation with Mr J. S. 

 Diller in the Klamath Mountains of 

 California. 



Mr Geo. H. Eld ridge, who has re- 

 cently completed a study of the oil-fields 

 of California, will devote the coming 

 year to the preparation of a report on 

 this subject and on the phosphate de- 

 posits of Florida. 



Dr Geo. Otis Smith will continue areal 

 surveys necessary for the preparation of 

 the Snoqualmie folio, Washington. On 

 the completion of his field season in the 

 Cascade Mountains he will survey the 

 Bluehill quadrangle, Maine. He will 

 be assisted by Mr Frank C. Calkins. 



Rocky Mountain Region. — Mr J. M. 

 Boutwell and Dr J. D. Irving will study 

 the mining geology of the Park City 

 district, Utah. 



Prof. T. C. Chamberlin will continue 

 the supervision of investigations in Pleis- 

 tocene geology of the United States. 

 He will be assisted by Prof. R. D. Salis- 

 bury and Mr W. W. Atwood in the 

 Rocky Mountain region, by Mr Frank 

 Leverett and Mr F. W. Taylor in Mich- 

 igan, and by Mr W. C. Alden in Win- 

 consin. 



Mr S. F. Emmons will continue the 

 supervision of investigations in the Di- 

 vision of Metalliferous Minerals, visit- 

 ing various mining regions in the west 

 for the purpose of examining work in 

 progress and preparing plans for future 

 work. He will be assisted by Dr J. D. 

 Irving in the completion of work on the 

 Leadville mining district. 



Dr N. M. Fenneman will continue the 

 investigation of the Boulder oil field, 

 Colorado. 



Mr Arnold Hague will continue the 

 preparation of his monograph on the 

 Yellowstone National Park, and will 

 visit the park for the purpose of obtain- 

 ing necessary additional information. 



Dr T. A. Jaggar will complete the 

 areal work necessary for the preparation 

 of the Boston folio, and will prepare a 

 report on. the Bradshaw district, Ari- 

 zona. He will be assisted by Dr Chas. 

 Palache and Mr Laurence La Forge. 



Prof. Wilbur C. Knight will continue 

 the areal and economic surveys neces- 

 sary for the completion of the Laramie 

 folio, Wyoming. 



Dr F. H. Knowlton will devote the 

 year to the completion of reports on the 

 fossil floras of the Puget and Laramie 

 formations. 



Mr Waldemar Lindgren has recently 

 returned from a winter field season in 

 Arizona, and will spend the greater part 



