July 22, 1904.] 



SCIENCE. 



121 



The Ouray quadrangle will be surveyed and 

 the work extended as far as possible into the 

 adjoining Lake City quadrangle. The survey 

 of the Engineer Mountain quadrangle will 

 also be completed. Dr. Cross will have the 

 assistance of Messrs. Ernest Howe, W. H. 

 Emmons and Albert Johannsen. 



Mr. J. E. Spurr will begin an investigation 

 of the areal and economic geology of certain 

 mining districts in Colorado, chiefly in Gilpin 

 and Clear Creek counties. Mr. Spurr will 

 be assisted by Messrs. Sydney H. Ball, George 

 H. Garrey and Oscar H. Hershey. 



Mr. S. F. Emmons will complete his mono- 

 graph on the geology of the Leadville mining 

 district and Dr. J. D. Irving will make an 

 investigation of the ore deposits of the Ouray 

 district. 



Delaware. — The Cretaceous and Tertiary 

 formations of Delaware will be investigated 

 by Professor William B. Clark. 



Florida. — Mr. George H. Eldridge will com- 

 plete field work in the phosphate district of 

 Florida and prepare a final report on the re- 

 gion. 



Georgia. — A thorough revision of the areal, 

 structural and economic geology of the Car- 

 tersville special and Cartersville regular quad- 

 rangles, Georgia, will be made by Mr. Lau- 

 rence LaForge. Preliminary work will be done 

 in the Dahlonega district by Mr. Arthur Keith. 



Idaho. — The areal and economic survey of 

 the Cceur d'Alene mining district, Idaho, will 

 be completed by Dr. F. L. Eansome. Special 

 attention will be given to the ore deposits. 

 Such reconnaissance examinations of the ad- 

 joining regions as may be deemed necessary 

 will be made. Mr. F. C. Calkins will assist 

 Dr. Eansome in this work. 



Indian Territory. — Areal and economic sur- 

 veys of the Sansbois, McAlester, Tuskahoma 

 and Windingstair quadrangles, Indian Terri- 

 tory, will be made by Mr. J. A. Taff. Mr. E. 

 O. Ulrich will cooperate with him in deter- 

 mining the stratigraphic succession in Indian 

 Territory. 



Kansas. — Mr. F. C. Schrader will make an 

 areal and economic survey of the Independence 

 quadrangle, Kansas. He will be assisted by 

 Professor Erasmus Haworth, who will pay 



special attention to the investigation of the 

 underground structure and its relation to the 

 accumulation of oil and gas. 



Louisiana and Texas. — Professor N. M. Fen- 

 neman will make an economic investigation of 

 the oil fields of the gulf coastal plain of Texas 

 and Louisiana. 



Maine. — Dr. George Otis Smith will, with 

 the assistance of Messrs. E. S. Bastin and 0. 

 "W. Brown, continue the survey of the Penob- 

 scot Bay quadrangle in Maine. Dr. Smith 

 will also exercise general supervision over 

 geologic work in New England and the crys- 

 talline belt of New York and New Jersey. 



Maryland. — Acting in cooperation with the 

 Maryland State Geological Survey, Professor 

 William B. Clark will continue areal and 

 economic surveys in Maryland for the prepa- 

 ration of geologic folios. 



Massachusetts. — Professor B. K. Emerson 

 will continue his investigation of the areal 

 and structural geology of central Massachu- 

 setts. 



Mississippi. — In cooperation with the divi- 

 sion of hydrology, Mr. E. C. Eckel, assisted 

 by Mr. A. F. Crider, will prepare a report on 

 the geology and the water resources of Missis- 

 sippi. 



Missouri. — The Silurian and Ordovician 

 paleontology of central Missouri will be in- 

 vestigated by Mr. E. 0. Ulrich, who will work 

 in cooperation with the state survey. The 

 lead and zinc deposits of the state will be 

 examined by Dr. H. F. Bain. 



Montana. — Mr. W. H. Weed will complete 

 the preparation of a report on the Butte 

 mining district. 



New Jersey. — In cooperation with Messrs. 

 N. H. Darton and W. B. Clark, Dr. Florence 

 Bascom will make an areal survey of the pre- 

 Paleozoic formations of the Trenton quad- 

 rangle. New Jersey, in preparation for the 

 Trenton folio. Dr. Bascom will also complete 

 the mapping of the Paleozoic, pre-Paleozoic 

 and Pleistocene formations in the Burlington, 

 Lambertsville, Bordentown and Princeton 

 quadrangles. 



Professor W. S. Bayley will complete the 

 mapping of the crystalline rocks of the Rari- 

 tan quadrangle. New Jersey. He will also 



