. The Arctic prairies, a canoe-journey of 2,000 miles in search of the caribou; being the account of a voyage to the region north of Aylmer Lake. Deer hunting. EBB AND FLOW OF ANIMAL LIFE 109. The Muskrat's variation probably has relation chiefly to the amount of water, which, as is well known, is cyclic in the north-west. The general resemblance of Beaver and Otter lines may not mean anything. If, as said, the Otter occa- sionally preys on the Beaver, these lines should in some de- gree correspond. The Wolf line does not man- ifest any special relationship and seems to be in a class by itself
. The Arctic prairies, a canoe-journey of 2,000 miles in search of the caribou; being the account of a voyage to the region north of Aylmer Lake. Deer hunting. EBB AND FLOW OF ANIMAL LIFE 109. The Muskrat's variation probably has relation chiefly to the amount of water, which, as is well known, is cyclic in the north-west. The general resemblance of Beaver and Otter lines may not mean anything. If, as said, the Otter occa- sionally preys on the Beaver, these lines should in some de- gree correspond. The Wolf line does not man- ifest any special relationship and seems to be in a class by itself. The great destruction from 1840 to 1870 was prob- ably due to strychnine, newly introduced about then. The Bear, Badger, and Wolverine go along with little variation. Probably the Coon does the same; the enormous rise in 1867 from an average of 3,500 per annum to 24,000 was most likely a result of accidental accumulation and not representative of any special abundance. Finally, each and every line manifests extraordinary variability in the '30's. It is not to be supposed that the population fluctuated so enormously from one year to another, but rather that the facilities for export were irregular. The case is further complicated by the fact that some of the totals represent part of this year and part of last; nevertheless, upon the whole, the following gen- eral principles are deducible: (a) The high points for each species are with fair regularity 10 years apart. Microtus pocket hole. Ed- monton, May 10, 1907. 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 Seton, Ernest Thompson, 1860-1946. New York, C. Scribner's Sons
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