An ancient river
Subtitle: did Lake Erie ever discharge its waters through Dundas Valley? : paper read before the Hamilton Association, Dec. 8, 1881
By: by J.W.W. Spencer.
Series: CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 91576
Publisher: s.n.
Published: 1993
Place of publication: [Hamilton, Ont
Language: eng
Format: Microform
Subjects: Geology -- Great Lakes.; Glaciers -- Great Lakes.; Great Lakes (North America)
Notes: Caption title.

Filmed from a copy of the original publication held by the National Library of Canada. Ottawa : Canadian Institute for Historical Microreproductions, 1993.

8 p. ; 20 cm.