Note on a new instrument for surveying deep bore holes / By J.B. Porter, D.Sc., M. Can. Soc. C.E.
[Montréal?] : publisher not identified, [1905?]; 5 pages with full-text search
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Porter, J. B. (John Bonsall), 1861-1944
Canadian Society of civil Engineers
- Note on a new instrument for surveying deep bore holes / By J.B. Porter, D.Sc., M. Can. Soc. C.E.
- [Montréal?] : publisher not identified, [1905?]
- Document source
- Library and Archives Canada
4 pages, 1 unnumbered leaf : illustration ; 23 cm.Caption title.
At head of title: Please read and send in as full a discussion as possible at earliest date. The Canadian Society of Civil Engineers. Incorporated 1887. Advance proof-(Subject to revision) ...
"(Read before the Mining Section, 30th November, 1905.)"