Fred_Urquhart_tags_480

Fred Urquhart persisted until he found a method of tagging butterflies that would work. Photo: Courtesy U of T Archives


Fred Urquhart persisted until he found a method of tagging butterflies that would work. Photo: Courtesy U of T Archives

Fred Urquhart persisted until he found a method of tagging butterflies that would work. Photo: Courtesy U of T Archives


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