01387nam a22002291 4500 gs 06000814 DLC 20260227111304.0 861217s1817 paubf 00010 eng c gs 06000814 //r862 U.S. Geol. Survey Libr./ICU ICU n-us--- QE77 .M12 QE77 .M12 Copy 2 Copy 2 in the Library of Congress. With this is bound the author's Essay on the formation of rocks ... Philadelphia, 1838; and his Observations on the geology of the West India islands, from Barbadoes to Santa Cruz, inclusive ... New-Harmony, Ind., 1832. QE77 .M12 Copy 3 Toner Coll Copy 3. Maclure, William, 1763-1840. 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; and an application to the fertility of every state in the Union, in reference to the accompanying geological map ... By William Maclure. Philadelphia, Printed for the author by A. Small, 1817. ix, [10]-127, [2] p. front. (fold. map) fold. pl. 21 cm. Read as a memoir before the American philosophical society, and inserted in the first volume of their Transactions, new series. Geology United States. 24480 24480