Marble portrait bust with bare shoulders and upper chest. The subject has wavy, cropped hair and a stern expression. "D. RITTENHOUSE" inscribed on the base. "DE FACIE PHILADELPHIAE / EX ECTIPO FLORENTIAE / FACIEBAT JOS. CERACCHI / CIDDCCLXXXXIV" incised on verso.

Head and shoulders of figure facing forward, wearing jacket, vest, and tie. The base of the truncated torso is supported by a low, flat scroll with a lengthy inscription at the verso. Inscribed "C A Heber 19(27)" and "Francis X. Dercum M. D." Additional inscription at rear bottom: "one of the generalizations held out to us by the conception of the universe here outlined is that of a whole, all parts of which are expressive of manifestations of energy, manifestations cognate in correlative and intrinsically identical of necessity [.] such a conception must include living matter. Francis X. Dercum"

Miniature bust of Georges-Louis Leclerc, Comte de Buffon. The bust is cast in bronze in two pieces. "BUFFON" is stamped in block letters on the side of the circular base. There are no identifying maker’s marks. This object is similar to another miniature bust in the APS collection (01.C.58) marked "CUVIER".