DABTON.] 



NORTH AMERICAN GEOLOGY. 



109 



Britton, N. L. — Continued. 



— - Notes on the modified drift. 



Stateu Island, Kat. Sci. Assoc, Proc, Jan, 

 uary 14, 1888 (J p.), 1888. 



[Notice of a ne^v exposure of Creta- 

 ceous near Grassmere Station, Staten 

 Island.] 



Stateu Island, Nat. Soi. Assoc, Proc, 

 March, 1889. 

 Am. Nat., vol. 23, p. 553 (i p.), 1889. 

 Abstract, New York Acad. Sci., Trans., 

 vol. 8, p. 31 (5 lines), 1889. 



[Notice of outcrop of Cretaceous 



clay at foot of Eltingville road, Staten 

 Island.] 



Staten Island, Nat. Sci. Assoc, Proc, April, 

 1889 (2 lines). 

 Am. Nat., vol. 23, p. 1037, 1889. 

 [Rranarks on the yellow gravel for- 

 mation.] 



Staten Island, Nat. Sci. Assoc, Proc, April, 

 1889 (1 page), 1889. 

 Am. Nat., vol. 23, pp. 1032-1033, 1889. 



[Remarks ou the relations of the 



crystalline rock series in the New York- 

 New Jersey region. 



New York Acad. Sci., Trans., vol. 8, pp. 

 52-53, 1889. 



Remarks on recent discoveries in 



local Cretaceous and Quaternary geol- 

 ogy- 

 New Yxjrk Acad. Soi., Trans., vol. 8, p. 177, 

 1889. 



[Outcrop of Cretaceous clay and of 



Triassic shales.] 



Staten Island, Nat. Sci. Assoc, Proc, 

 October, 1889 (12 lines). 



•] [Clay outlier near Monmouth 

 Junction, N. J.] 



New York" Acad. Sci., Trans., vol. 9, p.- 83 

 (2 lines), 1890. 



Broadhead, G. C. Coal measures in Mis- 

 souri. 



St. Louis Acad. Soi., Trans., vol. 2, pp. 311- 

 333, 1868. 



Note ou coal-measure fucoids. 



Am.Jour.Soii, 3d series, vol. 2, pp. 216-217, 



Quaternary deposits [of Missouri]. 



Am. Nat., vol. 4, pp. 61-62 (/j p.), 1871. 

 [MarieSj Osage, Warren, Shelby, Ma- 

 con, and Randolph counties.] 



Geol. Surv. Missouri, Reports, 1855-1871, 

 pp. 7-110, JefiTerson City, 1873, map, plates. 



Schedule showing depth of coal 



seams below given horizons. 



Geol. Surv. Missouri, preliminary report 

 on iron ores and coal fields from field work of 

 1872, part 2, p. 421, New York, 1873. 



[■ 



Broadhead, G. C. — Continued. 



Notes on such rocks of Missouri as 



admit of a fine polish. 



Geol. Surv. Missouri, preliminary report on 

 the iron and coal fields from field work of 

 1872, part 2, pp. 414-415, New York, 1873. 



Geology of northwestern Missouri. 



Geol. Surv. Missouri, preliminary report on 

 iron ores and coal fields from field work of 

 1872, part 2, pp. 1-402, New York, 1873. In- 

 cludes geology of Lincoln County by TV. B. 

 Potter, pp. 217-289. 



Report of the geological survey of 



Missouri, including field work of 1873- 

 74, 734, xlix, 4 pages, plates, atlas, Jef- 

 ferson City, 1874. 



Includes notes by Norwood, report on lead 

 region by Schmidt and Leonhard, Gage, and 

 Moore, and appendices by various persons. 



Abstract, Am. Jour. Sci., 3d series, vol. 9, 

 pp. 148-150, 1875. 



[ ] Bond [and Fayette, Montgomery, 



Chri8tian,Shelby, Eifingham, Moultrie, 

 Macon, and Piatt counties] . 



Illinois Geol. Sur., vol. 6, pp. 128-196, Bos- 

 ton, 1875. Includes a note by A. H.'Wortben, 

 pp. 146-148, 193-194. 



Reprinted in Economical Geology of Illinois, 

 vol. 3, pp. 467-544, Springfield, 1882. 



Drift formation and gold in Missouri. 



Am. Jour. Sci., 3d series, vol. 11, p. 150 (i p.), 

 1876. 



From Mines, Metals, and Arts, St. Louis, 

 December 9. 



The southeastern Missouri lead dis- 

 trict. 



Am. Inst. Mining Eng., Trans., vol. 5, pp. 

 100-107,1877. 



On the well at the insane asylum, St. 



Louis County, Mo. 



St. Louis Acad. Sci., Trans., vol. 3, pp. 216- 

 223, Plate XVI, 1878. 



Abstract, Am. Jour, Sci., 2d series, vol. 9, 

 pp. 61-62 (i p.), 1875. 



Occurrence of bitumen in Missouri. 



St. Louis Acad. Sci., Trans., vol. 3, pp. 224- 

 226, 1878. 



Age of our porphyries. 



St. Louis Acad. Sci., Trans., vol. 3, pp. 366- 

 370, ocxix, 1878. 



[Bowlders south of the Missouri, etc.] 



St. Louis Acad. Sci., Trans., vol. 3, p. xxiii 

 (iP-),1878. 



Thickness of the Missouri coal meas- 

 ures. 



Kansas City Review, vol. 1, pp. 392-393, 1878. 



Missouri iron ore of the Carbonifer- 

 ous age. ^ 



Kausa? City Review, vol. l,pp. 650-654, 1878, 



