Picture of Jean Baptiste Pierre Antoine de Monet de Lamarck. Lithographed by Boilly. The number "8363" is shown in the bottom right-hand corner of the sheet.
Publisher: Berlin: Photographische Gesellschaft.
Portrait of Linnaeus, from a copy by Pasch in the possession of R. Brown Esqr. of the original at the Royal Academy of Sciences at Stockholm. Engraved by C. E. Wagstaff.
Portrait showing Emil du Bois-Reymond, facing left. Lithographed by G. Englebach and printed by M. W. Lasfally, Berlin. Facsimile signature.
Publisher: Berlin: Verlag von August Hirschwald.
Picture of a statue of Jenner sitting holding a baby in his lap, preparing to inject the baby. Sculpted by Monteverde, photoengraved by Goupil & co. Text in French.
Photograph of John George Adami. Photographed by Notman, Montreal. Facsimile signature. The number "14745" is shown in the bottom right hand corner of the sheet.
Publisher: Berlin-Charlottenburg: Adolf Eckstein's Verlag.
Portrait of Hermann Ludwig Ferdinand von Helmholtz, who studied physiological phenomena, paving the way for acceptance of the basic principle of energy conservation in physiology.