a 100-year record Eckel, Edwin Butt 1906- creator text bibliography dcu Washington, [D.C.] U.S. G.P.O. 1961 monographic eng

print

iii, 399 p. : map ; 24 cm. by Edwin B. Eckel. "A summary of the first 100 years of published knowledge, including the chief occurrences of 445 mineral species." One folded col. map in pocket. Bibliography: p. 364-399. n-us-co Minerals Colorado Minerals Colorado Bibliography QE75 .B9 no. 1114 gs 61000286 DLC 760204 20260227111411.0 gs 61000286