GEOLOGICAL SOCIETY OF PENNSYLVANIA. 413 



Messrs Ducatel and Alexander will continue the 

 prosecution of their labours until the state be completely 

 surveyed ; a report, more particularly devoted to geo- 

 logy proper, is anticipated at the close of che present 

 year. 



Mr FeatherstonhaugW s Geological Report. 



REPORT OF AN EXAMINATION, MADE IN 1834, OF THE ELE- 

 VATED COUNTRY BETWEEN THE MISSOURI AND RED 

 RIVERS. Published by order of both houses of Congress. Washington, 

 1835. 



This is a neat, concise, yet elaborate report, forming 

 an octavo volume of 97 pages, in which the learned au- 

 thor has shown himself fully adequate to the duties of his 

 very arduous and highly important appointment. The 

 report is enriched by a geological section, upon a large 

 scale, of an extens;ive portion of this continent, commen- 

 cing at the Atlantic ocean and passing, in an irregular 

 line, across the Ohio, Wabash, Mississippi, Arkansas and 

 Red rivers to the province of Texas. 



We are pleased to learn that Mr F. has already ar- 

 rived on the field designated for his second tour of obser- 

 vations, viz. the investigation of an undescribed chain 

 of high lands, lying between the head waters of the 

 Mississippi and the Missouri rivers, called Coteau des 

 Prairies. 



Hall of the Geological Society of Pennsylvania. 



Since the publication of the first part of Volume I. of 

 their Transactions, the Society has found it necessary to 

 remove to more convenient quarters, and has accordingly 

 engaged commodious apartments in the new Exchange 



