188 ANNALS NEW YORK ACADEMY OF SCIENCES 



illustration sheet, 1902. [The Potomac series Cretaceous in age and 

 estuarine in origin.] 



1902. 2. Darton, N. H. : "Oelrichs, South Dakota-Nebras'ka quadrangle." 

 U. S. Ceol. Surv., Geol. Atlas, Folio No. 85, 6 pp., 4 maps, 2 figs., section 

 sheet, illustration sheet, 1902. [The Lakota immediately overlies the 

 Unkpapa near Hot Springs, South Dakota. The Morrison is absent in this 

 locality.] 



1902. 3. RiGGS, E. S., and Fakrington, O. O. : "The dinosaur beds of the 

 <irand River Valley of Colorado." Sci. Amer., Supp., vol. liii, pp. 22061- 

 22062, 2 figs., 1902. [Description and discussion of the Grand River beds. 

 They were deposited in a system of streams and lakes.] 



1902. 4. Fraas, E. : "Geologische Streifziige durch die Prarien und Felsen- 

 gebirge Nordamerikas." Wiirttemberg, Jahreshefte des Vereins fiir vater- 

 landisehe Naturkunde, Stuttgart, Jahrg. Iviii, pp. 65-68, 1902. [Observa- 

 tions on the Jurassic beds of Wyoming and their invertebrate fossils.] 



1902. 5. Lee, W. T. : "The Morrison shales of southern Colorado and north- 

 ern New Mexico." Journ. Geol., vol. x, pp. 36-58, 7 figs., 1902. [Detailed 

 descriptions of the southern Morrison occurrences. The Morrison extends 

 eastward into Oklahoma.] 



1902. 6. Lee. W. T. : "Canyons of southeastern Colorado." Journ. Geog., 

 vol. i, pp. 357-370, 12 figs., 1902. [Sections, descriptions, etc., of the Morri- 

 son and adjacent beds.] 



1902. 7. LooMis, F. B. : "On Jurassic stratigraphy on the west side of the 

 Black Hills." Second paper on American Jurassic stratigraphy. Amer. 

 Mus. Nat. Hist., Bull., vol. xvi, pp. 401-407, 1 pi., 1902. [Detailed descrip- 

 tions and sections.] 



1902. 8. Darton, N. H. : "Stratigraphy of the Bighorn Mountains." Sci., 

 N. S., vol. XV, p. 823, 1902. [Brief abstract of fuller paper.] 



1902. 9. Hatcher, J. B. : "Structure of the foreleg and manus of Bronto- 

 saurns." Carn. Mus., Ann., vol. i, pp. 356-376, 2 pis., 1902. [Notes on the 

 levels of different quarries.] 



1902. 10. Shattuck, George B. : "Development concerning the physical fea- 

 tures of Cecil County." Md. Geol. Surv., vol. Cecil Co., pp. 31-62, 2 pis., 

 1902. [Extensive bibliography.] 



1902. 11. Shatttjck, George B. : "The geology of the coastal plain forma- 

 tions." Md. Geol. Surv., vol. Cecil Co., pp. 149-194, 5 pis., 2 figs., 1902. 

 [ Patuxent is Jurassic ; Patapsco is Cretaceous ; Arundel is absent or not 

 differentiated.] 



1903. 1. Reagan, A. B. : "Geology of the Jennez-Albuquerque region. New 

 Mexico." Amer. Geol., vol. xxxi, pp. 67-111, 7 pis., 1903. [Cretaceous rests 

 directly upon Red Beds; apparently no Morrison present.] 



1903. 2. Lee, W. T. : "The canyons of northeastern New Mexico." Journ. 

 Geog., vol. ii, pp. 63-82, 14 figs., 1903. [Sections, descriptions etc. of coun- 

 tr.v where the Morrison is present.] 



1903. 3. Darton, N. H. : "Preliminary report on the geology and water re- 

 sources of Nebraska west of the 100th meridian." U. S. Geol. Surv., Pro- 

 fessional Paper No. 17, 69 pp., 43 pis., 23 figs., 1903. [Sections, etc.] 



1903. 4. Hatcher, J. B. : "Osteology of Haplocanthosaurus, with descrip- 

 tion of a new species and remarks on the probable habits of the sauropoda 



