Geology and mineral resources of the Hennepin and La Salle quadrangles,
Cady, Gilbert H. 1882-
Geology and mineral resources of the Hennepin and La Salle quadrangles, by Gilbert H. Cady ... work in cooperation with the U. S. Geological survey. Printed by authority of the state of Illinois. - Urbana, Ill., 1919. - 136 p. illus., vi fold., maps (2 in pocket) diagrs. 26 cm.
gs 20000106
Geology--Illinois.
Mines and mineral resources--Illinois.
QE105 / .A16 no. 37
Geology and mineral resources of the Hennepin and La Salle quadrangles, by Gilbert H. Cady ... work in cooperation with the U. S. Geological survey. Printed by authority of the state of Illinois. - Urbana, Ill., 1919. - 136 p. illus., vi fold., maps (2 in pocket) diagrs. 26 cm.
gs 20000106
Geology--Illinois.
Mines and mineral resources--Illinois.
QE105 / .A16 no. 37