4o DONS. — AVRIL, MAI ET JUIN IQoS 



Ihe Potomac group in tlie middle Atlantic slope, p. i8j-2i5, 7 pi. — W.-B. 

 Clark and G.-C. Martin : Corrélation of the Coal Measures of Maryland, 

 p. 215-233, 12 pi. — F. C. Schrader : Geological section of the Rocky moun- 

 tains in northern Alaska, p. 233-253, 4 pl» — A.-H. Brooks : Geological 

 reconnaissance in southeastern Alaska, p. 263-267. — C.-R. Keyes : Devonian 

 interval in Missouri, p.. 267-293, i pi. — A.-P. Coleman : Rock basins of 

 Helen mine, Michipicolon, Canada, p. 293-3o5, i pi. — B. Willis : Stratigraphy 

 and structure, Leris and Livingston ranges, Montana, p. 3o5-353, 8 pi. — 

 T.-H. Watson : Gopper-bearing rocks of Virgilina copper district, Virginia 

 and North Carolina, p. 353-377, 3 pi. 



Washington. U. S. Geol. Surv. 28 Ann. Rep., 5 vol., 1901-1902. 



G.-H. Eldridge : The asphalt and bituminous rocks deposits of the united 

 States, 23 vol., part i, p. 219-464, 22 pi. — Part 2 : W.-H. Hobbs : The old 

 tungsten min at Trumbell, Conn., p. 7-23, 5 pi. — H.-F. Bain, C.-R. van Hise 

 and G.-I. Adams : Preliminary report on the lead and zinc deposits of the 

 Ozark région, p. 23-228, i5 i»l. — F.-L. Ransome : The ore deposits of the 

 Rico Mountains, p. 229-398, 16 pi. — W.-H. Weed and J. Harrell : Geology and 

 ore deposits of the Elkhorn mining district Jefferson County, p. 399-55o, 

 II pi, — W. Lindgren : The gold belt of the Blue Mountains of Oregon, p 55i- 

 776, 26 pi. — J.-E. Spurr : The ore deposits of Monte Cristo, Wash., p, 777-866, 



3 pi, — Part 3 : C.-W. Hayes : The coal fields of the United States, p. 7-24, 

 I pi. — J.-B. Woodworth : The Atlantic coast Triassic coal field, p. 25-54, 



4 pi. — H.-H Stock : The Pensylvania anthracite coal field, p. 55-ii8, 5 pi. — 

 D. White, M.-R. Campbell and R.-M. Haseltine : The Northern Appalachian 

 coal field, p. 119-226, 2 pi, — C.-W. Hayes : The southern Appalachian coal 

 field, p. 227-264, 3 1)1. — G.-H. Ashley : The Eastern Interior coal field, p. 227- 

 264, 3 pi. — A.-C. Lane : The Northern Interior coal field, p. 3o7-332, 2 pi, — 

 H.-F. Bain : The Western Interior coal field, p. 333-366, 3 pi. — J.-A. Taff : 

 The Southwestern coal field, p. 367-414, 4 pi. — L.-S. Storrs : The Rocky 

 Mountain coal fields, 415-472, 2 pi. — G.-O. Smith : The Pacific coast coal 

 fields, p. 473-014, 4 pl- — A.-H. Brooks : The coal resources of Alaska, p, 5i5- 

 572, I pi. — M.-L. FuUer : The Gaines oil field of northern Pensylvania, p. 573- 

 628, 8 pi. — I.-C. Russell : The Portland cessant industry in Michigan, p. 629- 

 686, 3 pi. — J.-A. Talï : Chalk of southwestern Arkansas M^ith notes on its 

 adaptability to the manufacture of hydraulic céments, p. 687-742, 7 pi. — 

 Part 4 : A.-P. Davis : Hydrography of the American isthmus, p. 5o7-63o, 14 pi. 



— B. Phil. Soc. of Washington. XIV. 



Report of the Committee on Math. Se. for 1902. — F.-H. Bigelow^ : Appl. 

 of Math, in Meteorology, p. 2i5-225. 



Grande-Bretagne. — Dublin. Mem. of the Geol. Surv. Ire- 

 land. 112, 1903. 



io3 : G.-W. Lamplugh, J.-R. Kilroe, A. M'Henry, H.-J. Seymour, W.-B. 

 Bright : The Geology of the country around Dublin, 160 p. 



— The Scient. Trans. of the R. Dublin Soc. VII, série II, 14-16, 

 1902 ; VIII, I. 



16 : J. Joly : Some sédimentation experiments and théories, p. 391-402. 



