The simplification of the quadruplex, and the importance of its achievement
By: by D.H. Keeley.
Contributors: Canadian Society of Civil Engineers.
Series: CIHM/ICMH microfiche series -- no. 60708.
Publisher: s.n.
Published: 1986
Place of publication: [S.l
Language: eng
Format: Microform
Subjects: Telegraph.
Notes: Caption title.

At head of title: Advance proof ... Canadian Society of Civil Engineers, incorporated 1887. Transactions ...

"To be read Friday, 11th November, 1892."

Reproduction of original in: Public Archives of Canada. Library.

Pre-1900 Canadiana.

Microfiche. Ottawa : Canadian Institute for Historical Microreproductions, 1986. 1 microfiche (7 fr.) ; 11 x 15 cm. (CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches ; no. 60708).