. The Canadian field-naturalist. . Fig. 1. Reports for 1940-41 about changes in abundance of snowshoe rabbits compared with 1939-40. Each circle of 30 miles diameter (100 miles in Alaska) marks the approximate centre of a stretch of country reported on by one or more observers. {Canadian Field-Naturalist 54: 117). INCREASE reports are shown black, DECREASE white, NO CHANGE stippled. Where reports at the same centre disagree the circle is divided up in proportion to the number of opinions of each Please note that these images are extracted from scanned page images that may have been digi
. The Canadian field-naturalist. . Fig. 1. Reports for 1940-41 about changes in abundance of snowshoe rabbits compared with 1939-40. Each circle of 30 miles diameter (100 miles in Alaska) marks the approximate centre of a stretch of country reported on by one or more observers. {Canadian Field-Naturalist 54: 117). INCREASE reports are shown black, DECREASE white, NO CHANGE stippled. Where reports at the same centre disagree the circle is divided up in proportion to the number of opinions of each 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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