00897cam a22002531 4500 cd 34000139 DLC 20260227111146.0 790718s1882 dcu 000 0 eng cd 34000139 (OCoLC)5184738 DLC MdAN OCoLC DLC premarc V15 .U5 no. 9 Hilgard, J. E. (Julius Erasmus), 1825-1891. Determination of the length of a nautical mile, by Professor J. E. Hilgard. [Washington, D.C.] Bureau of Navigation, Navy Dept., 1882. 3 p. incl. tab. 23 cm. U.S. Bureau of Navigation (Navy Dept.) Naval professional papers, no. 9 Cover title. At head of title: Navy scientific papers, no. 9. "Transcript from U.S. Coast Survey report for 1881." - p. 1. Mile, Nautical. 18505 18505