Title: Figure 15: Mediation, mental concentration
Object type: Photograph
Date: 1854–56, printed 1862
Artist:  Guillaume-Benjamin-Amand Duchenne de Boulogne 
Artist bio: French, 1806–1875
Artist nationality: French
Artist role: Artist
Medium: Albumen silver print from glass negative
Dimensions: Image (Oval): 28.3 × 20.3 cm (11 1/8 × 8 in.)
Sheet: 29.9 × 22.1 cm (11 3/4 × 8 11/16 in.)
Mount: 40.1 × 28.5 cm (15 13/16 × 11 1/4 in.)
Classification: Photographs
Credit line: Purchase, The Buddy Taub Foundation Gift, Dennis A. Roach and Jill Roach, Directors; Harris Brisbane Dick and William E. Dodge Funds; and W. Bruce and Delaney H. Lundberg Gift, 2013
Department: Photographs
Repository: Metropolitan Museum of Art, New York, NY
Tags: term: Science, term: Men, term: Portraits