186 ANNAL.S NEW YORK ACADEMY OF SCIENCES 



1906. 9. Darton, N. H. : "Geology of the Owl Creek Mountains, with notes 

 on resources of adjacent regions in the oeded portion of the Shoshone 

 Indian reservation." 59th Cong., 1st Sess., Sen. Doc. no. 219, 48 pp., 19 

 pis., 1 fig., 1906. [Section, descriptions and distribution map of the Mor- 

 rison and other formations.] 



1906. 10. Darton, N. H. : "The liot springs at Thermopolis, Wyoming." 

 Journ. Geol., vol. xiv, pp. 194-200, 4 figs., 1906. [The Morrison is present 

 at Thermopolis.] 



1906. 11. Clark, W. B., and Mathews, E. B. : "Report on the physical fea- 

 tures of Maryland, together with an account of the exhibits of Mai'yland 

 mineral resources made by the Maryland Geological Survey." Md. Geol. 

 Surv., vol. vi, pts. 1 and 2, pp. 27-281, 30 pis., 19 figs., map, 1906. [Patux- 

 ent and Arundel are Jurassic. Both were deposited in swampy areas.] 



1906. 12. WiELAND, G. R. : "American fossil cycads." Carn. Inst. Wash., 

 Pub. 34, 266 pp., 50 pis., 137 figs., 1906. [Notes on the occurrence of the 

 cycads in the Morrison beds, with complete discussion of their morphology 

 and relationships.] 



1907. 1. Cross, W. : "Stratigraphic results of a reconnaissance in western 

 Colorado and Utah." Journ. Geol., vol. xv, pp. 634-679, 11 figs., 1907. 



-- [Description of the McElmo formation. Correlation table. McElmo 

 equivalent to the Morrison.] 



1907. 2. Weeks, F. B. : "Stratigraphy and structure of the Uinta range." 

 Geol. Soc. Amer., Bull., vol. xviii, pp. 427-448, 6 pis., 3 figs., 1907. [600- 

 800 feet of Jurassic present, of which 200-300 feet is limestone.] 



1907. 3. Fisher, C. A. : "The Great Falls coal field, Montana." U. S. Geol. 

 Surv., Bull., No. 316, pp. 161-173, 1 pi., 1907. [Morrison and Kootenie beds 

 present.] 



1907. 4. Darton, N. H., and O'Harra, C. C. : "Devil's tower, Wyoming, 

 quadrangle." U. S. Geol. Surv., Geol. Atlas, Folio No. 150, 9 pp., 3 maps, 

 cross-section and structure sheet, 1907. [Sections, maps, descriptions, etc., 

 of the Morrison and other beds.] 



1907. 5. Shattuck, G. B., Miller, B. L., and Bibbins, Arthur : "Patuxent," 

 Maryland, quadrangle. U. S. Geol. Surv., Geol. Atlas, Folio No. 152, 12 

 pp., 3 maps, 2 figs., section sheet, 1907. [Patuxent and Arundel provision- 

 ally classed as Jurassic and Patapsco as Cretaceous.] 



1907. 6. Cross, W., Howe, E., and Irving, J. D. : "Ouray, Colorado, quad- 

 rangle." U. S. Geol. Surv., Geol. Atlas, Folio No. 153, 19 pp., 3 maps, 4 

 figs., illustration sheet, 1907. [Descriptions and maps. La Plata, McElmo 

 and other formations.] 



1907. 7. Chamberlin, T. C, and Salisbury, R. D. : Geology, Volume III. 

 624 pp., 269 figs. [Good description of the Morrison formation and fluvia- 

 tile origin given for it.] 



1908. 1. Darton, N. H. : "Paleozoic and Mesozoic of central Wyoming." 

 Geol. Soc. Amer.. Bull., vol. xix, pp. 40.3-470. 10 pis.. 1908. [Many sections 

 and descriptions. Morrison is Cretaceous.] 



1908. 2. Keyes, Charles R. : "Geotectonics of the Estancia plains." Journ. 

 Geol., vol. xvi, pp. 434-451, 12 figs., 1908. [The Morrison is present in 

 eastern New Mexico.] 



