Dougal, William H.
copper (overall material)
overall: 43.3 cm x 28.6 cm; 17 1/16 in x 11 1/4 in
William H. Dougal (1822–1895) of New York and Washington, D.C., (after 1844) engraved this copper printing plate depicting four species of fish documented by the U.S. Exploring Expedition. The illustrations were to be published in Volumes XXII and XXIII, Ichthyology, by Louis Agassiz. Dougal engraved 26 of the 28 plates for this volume which was never printed.