Herschel, Sir John Frederick William, bart. No. ll in **E2191.6 Babbage, Charles, and Sir John Frederick William Herschel, bart.
Account of the repetition of M. Arago's experiments on the magnetism manifested by various substances during the act of rotation.
Lond. 1825. 30 pp. 4°. From the Philosophical trans. of the Koyal soc. of Lond. 1825 [**E.172.1.1825. Pt. 2).