MUE 



361 



Murchison (Sir Eoderick Impey). On the meaning originally attached 

 to the term " Cambrian System," and on the evidences since ob- 

 tained of its being geologically sjrnonymons with the previously 

 established term "Lower Silurian." (Tract.) 2 copies. 



8vo. London, 1847. 



. On the development of the Permian System in Saxony, as com- 

 municated by Professor Naumann. (Tract.) 2 copies. 



8vo. London, 1849. 



. On the geological structure of the Alps, Apennines, and Car- 

 pathians, etc. (Tract.) 2 copies. 8vo. London, 1849. 



. . [Abstract.] (Tract.) 8vo. London, 1849. 



. Memoria sulla struttura geologica delle Alpi, degli Apennini 



e dei Carpazi. Traduzione ed appendice sulla Toscana dei Cav. P. 

 Savi e G-. Meneghini. 8vo. Florence, 1850. 



. On the distribution of the Superficial Detritus of the Alps, as 



compared with that of Northern Europe. (Tract.) 2 copies. 



8vo. London, 1850. 



. On the Earlier Volcanic Eocks of the Papal States, and the 



adjacent parts of Italy. (Tract.) 2 copies. 8vo. London, 1850. 



. On the Vents of Hot Vapour in Tuscany, and their Eolations to 



Ancient Lines of Fracture and Eruptions. (Tract.) 2 copies. 



8vo. London, 1850. 



. Additional Eemarks on the Deposit of QEniugen in Switzerland ; 



with a list and description of the Silurian Eossils of Avrshire, by J. 

 W. Salter. (Tract.) 8vo. London, 1851. 



. On the Distribution of the Elint Drift of the South-east 



of England, to the south and north of the "Weald, and over the 

 surface of the South Downs. (Tract.) 2 copies. 



8a^o. London, 1851. 



. On the former Changes of the Alps. (Tracts.) 



8vo. London, 1851. 



. On the Origin of the Mineral Springs of Vichy. (Tract.) 



8vo. London, 1851. 



. On the Slaty Eocks of the Sichon ; and on the origin of 



the Mineral Springs of A'ichy. (Tract.) 2 copies. 



8vo. London, 1851. 



. Eeber die alteren vulkanischen Gebilde im Kirchenstaate und 



iiber die Spalten, w^elchen in Toscana heisse Dampfe entsteigen, etc., 

 deutsch von Gr. Leonhard. (Tract.) 8vo. Stuttgart, 1851. 



. On the Anticipation of the Discovery of Gold in Australia ; with 



a general view of the conditions under which that metal is distri- 

 buted. (Tract.) 8vo. London, 1852. 



. . Abstract. (Tract.) 8vo. London, 1852. 



• . On the meaning of the term " Silurian System," as adopted by 



Geologists in various countries during the last ten years. (Tract.) 



8vo. London, 1852. 



. On the Silurian Eocks of the South of Scotland ; with a list and 



description of the Silurian Eossils of Ayrshire, by J. W. Salter. 

 (Tract.) 8vo. London, 1852. 



. On some of the Eemains in the Eone-bed of the Upper Ludlow 



Eock. (Tract.) 8vo. London, 1853. 



