14 



Lignite from the mouth of Magothy River, Maryland. — From 



Francis Markoe,jr. 

 History of Tripoli ; its present condition, &c. By Robert Green- 

 how. — From the Author. 

 " Synopsis of the Organic Remains of the Cretaceous Group of 



the United States," and three Scientific pamphlets. By S. 



G. Morton, M. D. — From the Author. 

 Catalogue of the Library of the Academy of Natural Sciences. 



Philadelphia. — From the Academy. 

 Twenty -four Roman, Moorish, and Arabian Corns, found near 



Velez Malaga. Spain. — From G. Read Esq., U. S. Consul 



at Malaga. 

 Pamphlets on Scientific Subjects, by the Chevalier A. B. de 



Mascarenhas, Portuguese Consul, &c. Bristol, England. — 



From the Author. 

 A collection of Trap Rocks, from Virgmia. — From, H. C. 



Williams. 

 Specimens of the Red Sandstone of Connecticut, containmg 



impressions of the feet of Birds, &c. &c. : the Ornithichno- 



lites, &c. &c., of Professor Hitchcock. — From Col. Talcott, 



V. S. Army. 

 The following letters were read. From Isaac Weld, Esq., 



of Dublin, honorary Secretary of the Royal Dublin Society ; 



and from Lieut. Wm. F. Maury, U. States Navy : 



RoTAt Dublin Socibtt, 30th Oct. 1840. 

 To Fbahcis MiiiKOK, Jr., Esq. Corrtaponding Secretary, 4-c. 



Sir : Absence frora Dublin must be my apology for not having sooner acknow- 

 ledged your letter of the 22d August last, informing me that I had been elected a 

 corresponding member of the National Institution for the Promotion ol Science, 

 Cftablished at Washington. I beg to assure the members that I feel grateful for 

 the favorable sentiments they have been pleased to entertain towards me on this 

 occasion, and that I esteem it a high honor to belong to the Institution. 



We have in Dublin two institutions for the more immediate promotion of science — 

 the Royal Irish Academy and the Royal Dublin Society. I have been a member 

 of each for forty years past, but it is of the latter body that I am Honorary Secre- 

 tary. 



The Academy instituted in 1786 devotes itself to Science, Polite Literature, and 

 Antiquities. Original communications arc received and read, and those most ap- 



