90 The American Geologist. February, 1905 
whose later development has brought wealth and prosper- 
ity to their fortunate possessors. The portrait herewith 
reproduced is from a portrait in oil belonging to the Ten- 
nessee Historical Society. 
BIBLIOGRAPHY. 
1807—1809. [Translation of Humboldt's Aspects of Nature 
into Dutch.] 
1S21. Description of some new crystalline forms of the miner- 
als of the United States. Phila. Acad. Nat. Sci., Jour., vol. 2, pp. 
55-58, 1821. 
1823. Description of a variety of Amber and of a Fossil Sub- 
stance supposed to be the nest of an Insect discovered at Cape 
Sable, Magothy River, Anne- Arundel County, Maryland. Amer. 
Jour. Sci., vol. 3, pp. 8-15, 1821. Gilbert, Annal. 20, pp. 297-304, 
1822; Schweigger, Jour., 34, (=Jahrb. 4), pp. 434-439, 1822. 
1822. Description of some crystals of sulphate of Strontian, 
from Lake Erie. Phila. Acad. Nat. Sci., Jour. vol. 2, pp. 300-302, 
1822. 
1822. Description of a new crystalline form of Quartz. Phila., 
Acad. Nat. Sci., Jour. vol. 2, pp. 212-214, 1822. 
1823. Account of the Pyroxene of the United States and de- 
scriptions of some new varieties of its crystalline forms. Phila., 
Acad. Nat. Sci., Jour., vol. 3, pp. 105-124, 1823. 
1823. Notice of the Yenite of Rhode Island, and several other 
American minerals. Phila., Acad. Nat. Sci., Jour., vol. 3. pp. 222- 
224, 1823. 
1824. Description of the American Petalite from Lake Ontario. 
Phila., Acad. Nat. Sci., Jour., vol. 3, pp. 234-237, 1824. 
1824. Description of a new crystalline form of the Chrysoberyl. 
Phila., Acad. Nat. Sci., Jour., vol. 3, pp. 293-295, 1824. 
1824. Description of a new crystalline form of the Andalusite. 
Phila., Acad. Nat. Sci., Jour., vol. 4, pp. 122-123, 1824. 
1825. Observations on the zinc ores of Franklin and Sterling, 
Sussex County, New Jersey. Phila., Acad. Nat. Sci., Jour., vol. 4, 
pp. 220-231. 1825. 
1825. Description of a new crystalline form of Apophyllite, 
Laumontite, and Amphibole, and of a variety of Pearlstone. Phila., 
Acad. Nat. Sci., Jour., vol. 5, pp. 51-56, 1825. 
1825. Description and chemical analysis of the Retinasphalt 
discovered at Cape Sable, Magothy river, Ann-Arundel County, 
Maryland. Amer. Phil. Soc, Trans. 2, pp. 110-115, 1825. 
1825. Notice of a new crystalline form of the Yenite of Rhode 
Island. Amer. Phil. Soc, Trans. 2, pp. 478-480, 1825. 
1826. Geological Survey of the Environs of Philadelphia; per- 
