bABfON.] 



NORTH AMEbTCAN GfiOLOGY. 



485 



Hitchcock, Edward— Continiiod. 

 On the conversion of certain con- 

 glomerates into talcose and micaceous 

 schists and gneiss by the elongation, 

 flattening, and metamorphosis of the 

 pebbles and the cement. 



Am. Jour. Sci., 2d series, vol.31, pp. 372-392, 

 1861. 



Unstratified rocks. 



Keport on geology of Vermont, vol. 2, pp. 

 559-578, 583-594, Claremont, 1801. 



[ ] [On flattened, elongated, and 



curved pebbles in Vermont conglom- 

 erates.] 



Boston Soc. Nat. Hist., Proc, vol. 7, pp. 

 353-354, 1861. 



On certain conglomerated and brec- 



ciated trachytic dikes in the lower Si- 

 lurian rocks of Shelburne, Vt., with 

 special reference to the degree of heat 

 at the time of their production. 



Am. Assoc, Proc, vol. 14, pp. 156-158, 1860. 



and Hitchcock, C. H. Elementary 



geology, new edition, 12'^, xiv, 430 

 pages, 1 plate. New York, 1867. 



Hitchcock, E., jr., Hager, A. D., and 



Hitchcock, C. II. Report ou the ge- 

 ology of Vermont, descriptive, theo- 

 retical, economical, and scenograph- 

 ical, vol. 1, viii, 558 pages; vol. 2, pp. 

 599-982, maps, plates, Claremont, 1861. 

 Volume 2 consists of separate reports by 

 E. Hitchcock, Z. Thompson, C. H. Hitch- 

 cock, S. R. Hall, A. D. Hager, E. Bill- 

 ings, L. Lesquereux, and G. F. Barker. 

 Eeviewed by E. Billings, Am. Jour. Sci., 2d 

 series, vol. 33, pp. 416-420, 1861. 



Hitchcock, Edward, jr. Description of 

 a new species of Clathropteris discov- 

 ered in the Connecticut Valley sand- 

 stone. 



Am. Jour. Sol., 23 series, vol.20, pp. 22-25, 

 1855. 



' [On the contorted pebbles in the 



conglomerate of Vermont.] 



Boston Soo. Nat. Hist., vol. 7, p. 208 (J p.), 

 1851. 



Hitchcock, E., and, and Hager, A. 



D., and Hitchcock, C. H. Report on 

 the geology of Vermont, descriptive, 

 theoretical, economical, and scenog- 

 raphical, vol. 1, viii, 558pages ; vol.2, pp. 

 559-982, maps, plates, Claremont, 1861. 

 Volume 2 consists of separate reports by 

 E. Hitchcock, Z. Thompson, C. H. Hitch- 

 cock, S. R. Hall, A. D. Hager, E. Bill- 

 ings, L. Lesquereux, and G. F. Barker. 

 Eeviewed by E. Billings, Am. Jour. Set., 

 adsenes, vol.33, pp. 416-420, 1861. 



Hobbs, B. C. Report of geological sur- 

 vey of Parke County. 



Geol. Surv. Indiana, 3d and 4th Annual 

 Keports for 1871 and 1872, pp. 341-384, Indian- 

 apolis, 1872. 



Hobbs, William H. Ou the petrograph- 

 ical characters of a dike of "diabase in 

 the Boston basin. 



Harvard Ooll., Mus. Comp. Zool., Bull., vol. 

 16, No. V, pp. 1-12, plate, 1888. 



On the rocks occurring in the neigh- 

 borhood of Ilchester, Howard County, 

 Md., being a detailed study of the area 

 comprised in sheet No. 16 of the Johns 

 Hopkins University map. 



Joins Hopldns tlnlv, Circular, vol. 7, pp. 

 69-70, No. 05, 4°, 1888. 

 Abstract, Am. Nat., vol. 22, p. 627, 1888. 



On the paragenesis of allanite and 



epidote as rock-forming minerals. 



Am. Jour. Sci., 3d series, vol. 38, pp. 223-228, 

 1889. 



Abstract, Am. Nat., vol. 23, p. 721 (§ p.), 

 1889. 



Hobson, J. B. Nevada County. 



California, 10th Eeport of Mineralogist, pp. 

 364^-398, map, plate, 1890. 



Placer County. 



California, 10th Eeport of Mineralogist, pp. 

 410-434, map, plate, 1890. 



The Santa Maria River [Santa Bar- 

 bara County]. 



California, lOtb Eeport of Mineralogist, pp. 

 600-601, 4 plates, 1890. 



• Siskiyou County. 



California, 10th Eeport of Mineralogist, pp. 

 655-658, 1890. 



Hodge, J. M. Preliminary report on the 

 geology of parts of Letcher, Har- 

 lan, Leslie, Perry, and Breathitt coun- 

 ties. 



Kentucky Geol. Surv., John E. Proctor, 

 director, Eeports on the southeastern Ken- 

 tucky coal field, pp. 35-52, maps, plates, 

 1887. 



Preliminary report of the geology of 



the lower North Fork, Middle and 

 South forks, Kentucky River. 



Kentucky Geol. Surv., John E. Proctor, 

 director, Eeports on the southeastern Ken- 

 tucky coal field, pp. 53-114, plates, 1887. 



Hodge, James T. Report on the AUagash 

 section, from the Penobscot to the St. 

 Lawrence River. 



Maine and Massachusetts, 2d Annual Report 

 on the geolog.y of the public lands, pp. 49-73, 

 Augusta, 1838. 



