Letter from John Charles William Herschel, Woburn Green, Bucks., to 'Dear Uncle John' [John Herschel] Professor T J J [Thomas Jefferson Jackson] See USN has written to him. He is rediscussing theories of Sir William Herschel and will be working on problems of the Milky Way. He wishes to find some of the more scarce papers on the construction of the heavens, but he is not sure on what terms. He wonders if John could send a list and if he would consent to lend anything, otherwise he will write to likley bookesellers. 8 December 1909