"H.M.S. CHALLENGER Leaving Halifax, Nova Scotia, May 19, 1873. H.M.S. ALFRED,
Cheering, Us Out" from the CHALLENGER SKETCHBOOK by B. Shepard. This work was
discovered by J. Welles Henderson, a benefactor of the Philadelphia Maritime
Museum. Accompanying text by Harris B. Stewart, then head of NOAA's
Atlantic Oceanographic and Meteorological Laboratories.