Davis, Herbert Spencer 1875- creator text xx Washington U.S. Govt. print. off. 1937 Rev. ed., 1937. monographic eng

print

ii, 76 p. incl. illus., tables, diagrs. 23 cm. by H. S. Davis. At head of title: U. S. Dept. of commerce... Bureau of fisheries... "Revision of Bureau of fisheries Document no. 1061 and Investigational report no. 22."--p. 1. Bibliography: p. 74-76. Trout Trout Diseases Fish culture SH167 .T86 D3 1937 f 37000012 DLC 760427 20260227111250.0 f 37000012