Letter, from J. B. Kearney to Sir John Herschel, dated at Fareham Autograph letter signed by sender. Congratulations on the marriage of one of John Frederick William Herschel's daughters [Maria Sophia]. Well remembers the hours he spent with John Frederick William Herschel. Has had to struggle for a living. Gives some of his theories on music and light that he will not be able to transmit to print. 18 October 1865