Hall, Register of the city of Detroit, I have also had access to the old records, and have brought thence a bundle of gleanings. I am under many obligations to the Mechanics' Library As sociation of Detroit, and to the New York Historical Library, Mercantile Library Association, and Astor Library of the city of New York, for the use of books contained in their several valuable collections. Mr. Joseph G. Cogswell, librarian of the Astor Library, has also kindly rendered essential service, by a patient examination of many of the manuscripts, and by reliable advice concerning the plan of the work.