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By "Kavanagh, Isidore Joseph, 1855-1920"
On modern concretions from the St. Lawrence with remarks on cylinders found in the Potsdam sandstone / by Rev. Prof. Kavanagh.
By: Kavanagh, Isidore Joseph,
Publication info: S.l. :s.n.,1889?
Contributed by: Canadiana.org (archive.org)