Scope and arrangement
· Holograph transcript of his paper, "An enquiry into the principle of Mr. Dredge's tension bridges" : [composition date ca. Jul 1845; transcript date ca. late 1845-1850?] : (P'ANA 0074) : 1 fascicle (8 manuscript pages; 3 double sheets) : [no place] : begins, "In Mr. Dredge's Tension Bridges each half-span is treated very much as a lever ..."; concludes with an autograph note and signature: "Copy of the original Paper, which was written about July 1845. / F. Abbott.".