. The Canadian field-naturalist. 1977 DOUGLASS: MiCROTUS XANTHOGNATHUS IN NWT 243 90 H 80 70 60 H .2 50 > ^ 40H o 30 - ^ 20- 10- 1973 1974 1975 • Grid A ^ Grid B. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club

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