Cobrner of Hokural Priiosoply- ‘6104.58=**E.110.84 Herschel, Sir John Frederick William, Baronet. A preliminary discourse on the study of natural philosophy. Philadelphia. Carey & Lee. 1831. vii, 279 pp. [Cabinet of nat- ural philosophy.] 16°.
[The third copy is kept on the Special Libraries Floor.]
Apr. 29, I9OI Do654 — S.r. — Physics. ip