![[Heliotype plates in Deep-sea sounding and dredging]](https://bpldcassets.blob.core.windows.net/derivatives/metadata/commonwealth-oai:bn999f33m/image_access_800.jpg)
Sigsbee, Charles D. (Charles Dwight), 1845-1923 · 1880
"25 heliotype plates showing the ship, Sigsbee's sounding machines and various deck photographs of how to place it in operation. Plates are marked by The Heliotype Printing Co., 220 Devonshire St., Boston."--Hanson Collection catalog, p. 72
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