E. Sri;( lAi- ItKi'oKT on the Tuap I)ykks and Azoic Rocks of South- 

 Eastkkn Pknn.syiaania— 187."). Part I, Historical Introduction. By T. 

 Sterry Hunt. 8 vo., pp. 203. Price, $0 48; postage, ?0 12. 



MISCELLANEOUS REPORTS. 



A. lIisioitiCAL, 8KKTOH OK (iK«)i.o(u<A I, 10 X PF^oKATloNH ill Pennsylvania 

 an<l other States. By J. P. Lesley. With appontlix, containing Annual 

 Keports lor 1874 anil 187.") ; pp. 226, 8vo. Pri(re in paper, ?K) 2") ; postage, ?0 0*5. 



B. PUKblMINAJtV RkI'ORT OK THK MiNKUAI.OOV OK PkNNMYIAANIA — 



1874. By Dr. F. A. (Jenth. With appendix on the hy<lro-(!{irhon compounds, 

 by Samuel P. Sadtlor. 8vo., pp. 2()f), with vi<ij> of tlie State for reference to 

 counties. Price in i)aper, ?0 50; i)ostage, 5?0 08. Price in cloth, 80 7.'3 ; post- 

 ago, $0 10. 



li. 187.") — Si'KCIAIj RkPOIII' on TIIK CoKR MANtTKACTunK OF THK YOTTOH- 

 lOUHKNY RlVKll VaIjLKY IN Fa YKTTK AND WkHT MOKK LAN D (V)IINTIE8, 



with Geological Notcnoftho Coal and Iron Ore Beds, from Survey's, by Charles 

 A. Young; l)y Franklin Piatt. To which are ajjponded: I. A Rei)ort on 

 iMethods of Coking, l)y John Fulton. II. A Report on the useof Natural <iji8 

 in the Iron Manufacture, by .lohn B. Pearse, Franklin Piatt, and Profes.sor 

 Sadtler. Pp.252. Price, J>1 00; postage, SO 13. 



M. Rkpokt of PuoaREss in the Labokatouy ok the Sukvky at 

 Hakkisiujro — 1874-5. By Andrew H. McCreath. 8 vo., pp. 105. Price in 

 pap(!r, $i) 50 : postage, $0 05. 



M-. Second Repoiit of Prooress in the Laboratory ok iiii: Sur- 

 vey, at Harrisl)urg, by Andrew S. McCreath — 187f)-8, including 1. CMiwsi/iai- 

 tion of Coals, by Persifor Frazer. II, Firebricik Tests, by Franklin Piatt. 

 III. Notes on Dolomiti<; Limestones, by J. P. Lesley. IV. Utilization of An- 

 thracite Slack, by Franklin Piatt. V. Determination of Carbon in Iron or 

 Steel, l)y A. S. McOeatli. With 3 indexes, plate, and 4 page platcH. Pp. 438. 

 Price ill clotli, $0 65 ; postage, $0 18. 



M.-. Third Report of Proorehs in the Ijaroratorv of the Survey, 

 at Ilarrisburg. Analyses, ifec, &c. By Andrew S. M<;Creath. Pp. 12(5, with 

 2 indexes anil map. Price, $0 40; postage, fO 10. 



N. Rki'oki' of pROdREss — 187.5-6-7. Two Hundred Tari.es of lOi, eva- 

 tion AMOVE Ti de-Levee of tlie Railroad Stations, Sunnnils and 'I'mmels; 

 (^anal Lo(!ks and Dams, River Ridles, A'c, in and around Pennsylvania; witli 

 map: p[). 279. By (Miarles Allen. Price, |>0 70 ; postage, fO 15. 



O, Catai.o(hie <>v the (Jeoeooioai, Miihuem — 1874-.5-6-7. Wy CbarleH 10. 

 Hall. Part I. Colbictionof Ro(;k Sj)ecimens. Nos. 1 to 4,264. Pi<.217. Prirte, 

 JO 40; postage, ?0 10. 



0-. Cataloohe of the GKf)M>oi('Ai- Museuai. liyCliarles I''. Hall. I'art 

 II. 1. Collections of rock sf)Ocimeiis, Nos. 42(55 to 8071. 2. I'aheontological 

 sjxifiimens. Price, $0 40 ; postage, fO 12. 



p. 1879— Repori- and Ati.as of the ("oai, I''i,(>ka ok I'ennsvevania 



AND OF THE CaRHOMFEROUS FORMATION Til ROIMI HOtlT IllE UNITED 



States. By Leo Lesqueroux. PriiiO of Report, fO 80 ; postage, ?0 28. Pri(!i» 

 r)f Atlas, ?3 .-{5; jjostage. fO 22. 



P-'. The Permian or Upper Carhoniferous I'i.oua of WEsr Vik- 

 niNiA and S. W, I'ennhyi.vania, with 38 plates. By Win. M. l'"oiilaiiie, 

 M. A., and I. C W^hito, A. M. Pricie, |2 25; jioHlage, fO 17. 



Other Reports of the Survey are in the liandH of the siule Prinict, and 

 will H<M)n be published. 



(7) 



