Digital Library Search
Description
Sounding machine with Negretti and Zambra deep-sea thermometer descending.In: Report on the Construction and Work in 1880 of United States FishCommission Steamer FISH-HAWK, by Lieutenant Zera Luther Tanner, U. S. N.United States Commission of Fish and Fisheries.Part IX. Report of the Commissioner for 1881. Plate XIII, p. 53. (Image credit: Archival Photograph by Mr. Steve Nicklas)