Catalogue and index of contributions to North American geology, 1732-1891,
Darton, Nelson Horatio, 1865-1948.
Catalogue and index of contributions to North American geology, 1732-1891, by Nelson Horatio Darton. - Washington, Gov't print. off., 1896. - 1045 p. 24 cm. - U.S. Geological survey. Bulletin no. 127 . - Geological Survey bulletin ; 127. .
gs 05000696 //r862
Geology--Bibliography.--North America
QE75 / .B9 no. 127
Catalogue and index of contributions to North American geology, 1732-1891, by Nelson Horatio Darton. - Washington, Gov't print. off., 1896. - 1045 p. 24 cm. - U.S. Geological survey. Bulletin no. 127 . - Geological Survey bulletin ; 127. .
gs 05000696 //r862
Geology--Bibliography.--North America
QE75 / .B9 no. 127