8 



W 



Principles of Geology, being an inquiry liovv fai the former chan- 

 ges of the earth's surface are referable to causes now in operation, 

 by Charles Lyell, Esq., F. R. S., President of the Geological Soci- 

 ety of London. The fourth edition, with numerous additions and 

 improvements, 4 vols. 12mo. London, 1835. From the author. 



Project for a new English Dictionary, by Charles Richardson. 

 London. 



Memorias de la Institucion Agronoma de la Habana, por Don Ra- 

 men de la Sagra. Tomo Primero, 1834. From the author. 



Letha^a Geognostica ; Von Dr. H. G. Bonn, Professor an der Uni- 

 versitat zu Heidleberg. Large folio, vvhh numerous lithographic 

 prints. From the author. 



La Revue des Peintres. Publication mensuelle, Livraison IC 

 1'7 — 18, with numerous lithographic prints. 



Observations of Clironotneters, from the appendix to Capt. Sir 

 John Ross's Narrative of his second Expedition to the Arctic regions, 

 ' from 1829 to 1833. 



Instructions for making and registering Meteorological observations 

 in Southern Africa and other countries in the South Seas, and also at 

 Sea, by Sir John F. W. Herschel, F. R. S. 



HEZEKLVH HOWE h Co 



Elements of Geology. With 

 Remains. Intended for the use 



Young 



By Charles Lyell, F. R. S., one volume, 12mo., to be edited by 



Professor Silliman. 



