No. 11 in **£.191.6 Babbage, Charles, and Sir John Frederick William Herschel, bart.
Account of the repetition of M. Arago's experi- ments on the magnetism manifested by various substances during the act of rotation.
Lond. 1825. 30 ppe 4° From the Philosophical trans. of the Royal Soc. of Lond. 1825 |**E.172.1.1825. Pt. 2).
ae Sir John Frederick
“Magnetism. -Hersche William, bart.