00758cam a22002411 4500 gs 13000001 DLC 20260227111313.0 730208s1912 dcuaf b f000 0 eng gs 13000001 (OCoLC)555656 DLC ODaWU OCoLC DLC QE75 .M7 v. 51 QE769 .W16 1912 Walcott, Charles D. (Charles Doolittle), 1850-1927. Cambrian Brachiopoda, by Charles D. Walcott. Washington, Govt. print. off., 1912. 2 v. illus., civ pl. 30 cm. Geological Survey (U.S.). Monographs, v. 51 Bibliography: p. 13-26. pt. 1. Text.--pt. 2. Plates. Brachiopoda, Fossil. 25217 25217