Maryland Geological Survey 41 



is- 1 



Morton, S. G. Description of the Fossil Shells which characterize the 

 Atlantic Secondary Formation of New Jersey and Delaware; including 

 four new species. (Eead Dec. 11, 1827; Jan. 1, 1828.) 



Jour. Acad. Nat. Sci. Phila., vol. vi, 1829, pp. 72-100, plates iii-vi. 



Vanuxem, Lakdneu. Geological Observations on Secondary, Tertiary, 

 and Alluvial formations of the Atlantic coast of the United States of 

 America. Arranged from the Notes of Lardner Vanuxem by S. G. 

 Morton. (Bead Jan. 8, 1828.) 



Jour. Acad Nat. Sci. Phila., vol. vi, 1829, pp. 59-71. 



. Remarks on the characters and classification of certain 



American Bock Formations [in a letter to Professor Cleaveland] . 

 Amer. Jour. Sci., vol. xvi, 1829, pp. 254-256. 



1830 



Morton, Samuel G. Synopsis of the Organic Bemains of the Ferru- 

 ginous Sand Formation of the United States, with Geological remarks. 

 Amer. Jour. Sci., vol. xvii, 1830, pp. 274-295; vol. xviii, 1830, pp. 243-250. 



. Additional observations on the Geology and Organic Bemains 



of New Jersey and Delaware. (Bead Jan. 19, July 6, 1830.) 

 Jour. Acad. Nat. Sci. Phila., vol. vi, 1829, pp. 189-204. 



1831 



Brongniart, Alex. Bapport sur un Memoire de M. Dufresnoy, 

 Tngenieur des Mines, ayant pour titre : Des Caracteres particuliers que 

 presente le terrain de Craie dans le Sud de la France et sur les pentes 

 des Pyrenees. Fait a l'Acad. roy. d. Sci., Apr., 1831. 



Annales des Sc. Naturelles, t. xxii, 1831, pp. 436-463, plate xiv. 



1832 



Durand, Elias. On the Green Color and Nature of the coloring 

 Agent of the Water of the Delaware and Chesapeake Canal, near the first 

 lock on the Chesapeake side. 



Jour. Phila. Col. of Pharmacy, vol. iii, 1832, pp. 276-277. 



