[Carbon arc spectrum]
Photograph
[Carbon arc spectrum]
1906–1908
Lippmann plate
Image: 5/8 × 1 9/16 in. (1.6 × 4 cm)
Overall (prism): 1 9/16 × 1 9/16 × 1/4 in. (4 × 4 × 0.6 cm)
Mount (glass): 2 11/16 × 2 11/16 in. (6.8 × 6.9 cm)
Other (housing): 6 3/4 × 4 3/4 × 9/16 in. (17.2 × 12 × 1.4 cm)
Gift of Mrs. Herbert E. Ives
1981.3015.0006
Inscriptions Inscribed on envelope: Same as previous \ 10 \ CARBON ARC SPECTRUM
