MARYLAND GEOLOGICAL SUKVEY xli 



In 1898 Dall published a most important summary of existing knowl- 

 edge of the Tertiary of North America, in which he suggested a sub- 

 sidence and classification of the Maryland Miocene deposits and cor- 

 related them with the strata of other parts of North America and of 

 Europe, 



BIBLIOGKAPHY. 



1669. 



SiiRiGLEY, Nathaniel. A True Eolation of Virginia and Mary- 

 Land; with the commodities therein, [etc.] London, 1669. 



(Kepub.) Force's Collection of Historical Tracts, vol. iii, No. 7, Washing- 

 ton, 1844, 51 pp. 



1685. 



Lister^ Martini. Historia sive synopsis methodicse Conchyliorum. 

 PI. 1059, fig. 3. London, 1685. 



1809. 



GoDON, SiLVAiN. Observations to serve for the Mineralogical ]\Iap 

 of the State of Maryland. (Eead Nov. 6, 1809.) 



Trans. Amer. Philos. Soc, o. s. vol. vi, 1809, pp. 319-323. 



Maclure, Wm. Observations on the Geology of the United States, 

 explanatory of a Geological Map. (Head Jan. 20, 1809.) 

 Trans. Amer. Philos. Soc, o. s. vol. vi, 1S09, pp. 411-428. 



Observations sur la Geologie des Etats-Unis, survant a ex- 



pliquer une Carte Geologique. 

 Journ. de phys. de chem. et d'hist. nat., vol. Ixix, 1809, pp. 204-213. 



1811. 



Maclure, Wm. Suite des observations sur la geologie des Etats- 

 Unis. 



Journ. de phys., de chem. et d'hist. nat., vol. Ixxii. Paris, 1811. With 

 map, pp. 137-165. 



1817. 



Maclure, Wm. Observations on the Geology of the United States 

 of America, with some remarks on the effect produced on the nature 

 and fertility of soils by the decomposition of the different classes of 

 rocks. With two plates. 12mo. Phila., 1817. 



