1018 



CATALOGUE AND INDEX OF 



[bull, 127. 



■Williams, George H. — Continued. 



The contactmetamorphisin produced 



in the adjoining mica schists and lime- 

 stones by the massive rocks of the 

 " Cortland series," near Peekskill, 

 N.Y. 



Am. Jour. Soi., 3<\ series, vol. 36, pp. 254-259, 

 Plate TI, 1888. 



Abstracts, Johns Hopkins Univ., Circulars, 

 vol.7, pp. 63-65, No. 65j Am. Nat., vol. 22, pp. 

 1020-1021 (i p.), 1888. 



[Subdivisions of Archean, nature of 



oldest crystalline schists, origin of ser- 

 pentine, and use of term "Taconic."] 

 International Cong. Geol., Am, Committee, 

 Eeports, 1888 A, pp. 67-68, 1888. 



On the use of the term "Taconic." 



International Cong. Geol., Am. Committee, 

 Eeports, 1888 B, p. 17 (3 lines), 1888. 

 Am. Geol., vol. 2, p. 207, 1888. 



Geology of the Baltimore region. 



Jolins Hopkins Univ., Circnlars, vol. 7, p. 73 

 (J col.). No. 65, 4°, 1888. 



Progress of the work on the Archean 



geology of Maryland. 



Johns Hopkins Univ., Circnlars, vol. 7, pp. 

 61-63, No. 65, i°, 1888. 



Geology of Fernando de Noronha, 



P.art II, petrography. 



Am. Jour. Soi., 3d series, vol. 37, pp. 178-189, 

 1889. 

 Abstract, Am. Nat., vol. 23, p. 522 (J p.), 1889. 



Contributions to the mineralogy of 



Maryland. 



Johns Hopkins Univ., Circular, vol. 8, pp. 

 99-100, No. 75, i'=', 1889. 



[Notice of the results of studies in 



the Menominee and Marquette regions. ] 

 U. S. Geol. Surv., 8th Report, J. W. Powell, 

 Director, p. 135 (J p.), Washington, 1889. 



[Notice of results of petrographio 



studies in the greenstone sehist areas 

 of the Marquette and Menominee re- 

 gions of Michigan.] 



U. S. Geol. Surv., 9th Eeport, J. W. Powell, 

 Director, p. 83 (| p.), Washington, 1889. 



The greenstone schist areas of the 



Menominee and Marquette regions of 

 Michigan ; a contribution to the subject 

 of dynamic metamorphism in eruptive 

 rocks. 



U. S. Geol. Surv., Bull. No. 62, pp. 31-241, 

 Plates III-XVI, Washington, 1890. 

 Abstract, Am. Nat., vol. 25, pp. 472-574, 1891. 



The nonfeldspathic intrusive rocks 



of Maryland, and the course of their 

 alteration. 



. Am. Geol., vol. 6, pp. 35-49, 1890. 



Williams, George H. — Continued. 



Note on the eruptive origin of the 



Syracuse serpentine. 



Geol. Soc. Am., Bull., vol. 1, pp. 533-534, 

 1890. 



Abstracts, Am. Geo!., vol. 5, p. 118 (J p.), 

 1890 ; Am. Nat., vol. 24, p. 211 (4 lines), 1890. 



Significance of oval granitoid areas. 



Geol. Soc. Am., Bull., vol. 1, p. 558 (J p.), 

 1890. 



Discussion of paper by C. H. Hitchcock on 

 "Significance of oval granitoid areas in the 

 Lower Laurentian." 



Geological and petrographical ob- 

 servations in southern and 'western 

 Norway. 



Geol. Soc. Am., Bull., vol. 1, pp. 551-553, 1890. 

 Discussed by B. K. Emerson, p. 553 (J p.). 

 Abstracts, Am. Geol., vol. 5, pp. 120-121 (i 

 p.) ; Am. Nat., vol. 24, pp. 210-211 (J p.), 1890. 



On a geological excursion in the 



northern Appalachian chain. 



Johns Hopkins Univ., Circulars, vol. 10, No. 

 84, pp. 27-28 (li cols.), 4°, 1890. 



Geology of the vicinity of Balti- 

 more. 



Macfarlane's Geol. Ewy. Guide, 2d edition, 

 pp. 334-335, 1890. 



[ ] The work on the crystalline rocks 



of Maryland. 



U. S. Geol. Snrv., 10th Eeport, J. W. Powell, 

 Director, pp. 152-154, Washington, 1890. 

 Abstract, ibid., pp. 31-32, 



[On transition of crystalline and 



semicrystalline rocks in eastern Mary- 

 land.] 



Geol. Soc. Am., Boll., vol. 2, p. 223 (i p.), 1891. 



Discussion, of E. PumpeUy, "The relation 

 of secular rock disintegration to oertaiu tran- 

 sitional crystalline schists." 



[ ] [Fossils in the Newark formation 



of Frederick County, Md.] 



Geol. Soc. Am., Bull., vol. 2, p. 318 (Jp.), 1891. 



Anglfesite, cerussite, and sulphur 



from the Mountain View lead mine, 

 near Union Bridge, Carroll County, Md. 

 Johns Hopkins Univ., Circulars, vol. 10, pp. 

 73-75, No. 87, 4°, 1891. 



Geology of crystalline rocks, Wash- 

 ington sheet, Maryland-District of Co- 

 lumbia-Yirginia, United States Geo- 

 logical Survey. 



Guide to Washington, prepared for the In- 

 temational Cong. Geol., 5th session, Washing- 

 ton, 1891. In back. 



Folded colored geologic map, with geology 

 of sedimentary rocks, by N, H, Daxton. 



