1 88 ' ADDITIONS TO THE LTBUAEY. 



R. The Geology of McKean County and its connection with 

 that of Cameron, Elk, and Forest, by Chas. A. Ash- 

 burner. 8vo. Harrisburg, 1880. Also Maps and 

 Charts. 8vo. 



R. (Appendix A.) Drillings for Coal in Sergeant Township, 

 McKean County, by N. F. Jones, J. P. Lesley, and C. A. 

 Ashburner. 8vo. Harrisburg, 1881. 



T. The Geology of Elair County, by E. Piatt. 8vo. Harris- 

 burg, 1881. 



T. Geology of Blair County, by J. J. Stevenson. Atlas. 8vo. 



Tj. The Geology of Bedford and Pulton Counties, by J. J. 

 Stevenson. 8vo. Harrisburg, 1882. 



T^. The Geology of Centre County, by E. Y. d'Invilliers. 8vo. 

 Harrisburg, 1881. 



y. Parti. The IS'orthern Townships of Butler County. Part 2. 

 A special Survey made in 1875, along the Beaver and 

 Shenango rivers, in Beaver, Lawrence, and Mercer 

 Counties, by H. M. Chance. 8vo. Harrisburg, 1884. 



Vj. The Geology of Clarion County, by H. M. Chance. 8vo. 

 Harrisburg, 1880. 



Z. Report on the Terminal Moraine in Pennsylvania and 

 Western Kew York, by H. C. Lewis. 8vo. Harris- 

 burg, 1884. 



Pennsylvania. Second Geological Survev. Reports A^, B, B.„ 

 C, C,, C3, D, D„ E, P, G, G,, G3, G„ H, H,, H H„ H., I, I„ I^ 

 J, K„ £3, L, M,, N", 0, 0„ P, P„ Q, Q„ Q3, R, T, Y, Y,. 8vo. 

 Harrisburg, 1875-84. Presented by H. Bauerman, Esq., F.G.S. 



Penj, G. A. Estatistica agricola do Districto de Beja. Parte 2 & 3. 



4to. Lisbon, 1884-85. 

 Petzholdt, A. Silicification organischer Kdrper. 4to. Halle, 1853. 



Presented hy Prof. P. M. Duncan, F.B.S. 

 Phillies, J. Arthur. A Treatise on Ore Deposits. 8vo. London, 



1884. 

 Pichler, A. Beitrage zur Geognosie Tirols. 8vo. Insbruck, 1859. 



Presented by A. W. Waters, Esq^., F.G.S. 

 PortiSf A. Les Cheloniens de la mollasse Yaudoise conserves dans 



le Musee Geologique de Lausanne. 4to. Geneva, 1882. 



. 11 calcare del Monte Tabor, Piemonte. 8vo. Turin, 1883. 



. II cervo deUa torbiera di Trana. 8vo. Turin, 1883. 



. Nuovi chelonii fossili del Piemonte. 4to. Turin, 1883. 



. Nuovi studi sulle traccie attribuite aU' uome Pliocenice. 4fco. 



Turin, 1883. 

 . Contribuzione aUa ornitolitologia Italiana. 4to. Turin, 



1884. 



