Pegmatites of Massachusetts,
Billings, Marland Pratt, 1902-
Pegmatites of Massachusetts, by Marland P. Billings. Prepared under a cooperative project for geologic investigations in the Commonwealth of Massachusetts. - Boston, 1941. - 22 p. maps. 28 x 22 cm. - [Cooperative Geologic Project] Bulletin no. 5 .
At head of title: Commonwealth of Massachusetts. Dept. of Public Works, U. S. Department of the Interior. Geological Survey.
gs 41000116
Pegmatites.
Mines and mineral resources--Massachusetts.
QE461 / .B55
552.1
Pegmatites of Massachusetts, by Marland P. Billings. Prepared under a cooperative project for geologic investigations in the Commonwealth of Massachusetts. - Boston, 1941. - 22 p. maps. 28 x 22 cm. - [Cooperative Geologic Project] Bulletin no. 5 .
At head of title: Commonwealth of Massachusetts. Dept. of Public Works, U. S. Department of the Interior. Geological Survey.
gs 41000116
Pegmatites.
Mines and mineral resources--Massachusetts.
QE461 / .B55
552.1