"Herschel at the Cape" Diaries and correspondence of Sir John Herschel from 1834-38, edited by Evans, Deeming and Goldfarb. University of Texas press, 1969. 397 pgs.
Perfect condition with dust jacket.
"The Shadow of the Telescope" by Gunther Buttman, A Biography of Sir John Herschel. Scribners & Sons, New York, 1969. 220 pgs.
Both for $43 shipped. Paypal add 1.5%