Report of Samuel Keefer, civil engineer, to the president and directors of the Niagara Falls Suspension Bridge Company, and to the president and directors of the Clifton Suspension Bridge Company
Subtitle: Brockville, Ontario, March 1st, 1869.
Contributors: McAlpine, William J. 1812-1890.; Niagara Falls Suspension Bridge Company.; Clifton Suspension Bridge Company.
Series: CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 01493; CIHM/ICMH microfiche series -- no. 01493
Publisher: s.n.
Published: 1869
Place of publication: [S.l
Language: eng
Format: Microform
Subjects: Bridges, Suspension -- Design and construction.; Ponts suspendus -- Plans et construction.; Niagara Falls (N.Y. and Ont.) -- Bridges.; Niagara, Chutes (New York et Ontario) -- Ponts.