John Chapman papers

This collection consists of drafts, letters, manuscripts, notes, financial accounts, and a prospectus for the publication of a book. Specifically, there are lectures and notes on mechanics, as well as drafts for patents on inventions submitted to the Royal Commissioners of the Great Exhibition of 1850, including an air engine. The collection also includes letters and papers on W. L. Henson's Knitting Machine, plans and contracts for the establishment of railways and public works in India, and photographs of the "New" Lebaudy Airship and Airship Hanger.