Red blood cells of a toad (Magnesium light)
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Photograph
Red blood cells of a toad (Magnesium light)
ca. 1870
Albumen silver print
Image (circular): 4 3/4 × 4 3/4 in. (12 × 12 cm)
Paper: 5 × 5 1/8 in. (12.7 × 13 cm)
Mount: 11 1/4 × 9 in. (28.5 × 22.8 cm)
Gift of Martin L. Scott, 2021
2021.0030.0002
Inscriptions applied label mount recto: WAR DEPARTMENT, \ Surgeon General's Office, Army Medical Museum. \ Red Blood Corpuscles of Toad. \ Magnesium Light) \ Magnified 1000 diameters by Powell & Sealand's immersion 1/16 \ Photo-Micrographic Negative No. 122 New Series \ By Brevet Lieutentant Colonel J.J. WOODWARD, Asst. Surg., U.S.A. \ BY ORDER OF THE SURGEON GENERAL.
