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GEOLOGY OF THE KLONDIKE GOLD FIELDS.
311
mollusk from the upper Yukon, and to all inquiries regarding the existence of shellfish in this northern water invariably a negative reply was received. Only on that day did I again obtain success
Sluicing on the Bonanza.
in my malacological effort, the almost icy waters rewarding my search with a single specimen—unfortunately subsequently lost—of a Bythinella, or some closely related type, so that even to-day my
