During late August and early September the fawns probably averaged about 50 lb. in weight. (For the measurements of two specimens, see the section on _Measurements_.) Yet they varied so much in size that some appeared nearly twice as big as others. On September 7 an exceptionally small fawn was secured (estimated weight, 35 lb.) (fig. 23). Its coat was soft and woolly, representing an earlier stage than that seen in any of the other fawns of that season. It was molting into the next pelage, and its hide was unprime. It must have been born at an unusually late date. Fred Schweder, Jr., remarked that he sometimes sees this stage in the growth of fawns when the Caribou come down early from the north (about the first of August), but it seems remarkable that it should have been found in a September fawn. The present specimen has actually smaller measurements than one secured on August 2 at Artillery Lake (Seton, 1929, +3+: 97). The collector reported that the parent doe appeared of ordinary size--not a particularly small or young one. The yearlings noted on the spring migration in May (south of Churchill) and in June (at Nueltin Lake) appeared roughly half the size of the adults. Evidently several years are required for the attainment of full growth. The younger adult bucks, with smaller antlers, are appreciably inferior in body size to the older bucks, with better developed antlers. _References._--Seton, 1929, +3+: 97, 98; Banfield, 1951a: 30. _Antlers_ In late August and early September antlers were already in evidence on the fawns, at an age of less than three months. They consisted of bony knobs, covered with skin, and were an inch or two long. I obtained no information as to when the fawns may shed the velvet or the antlers themselves. By analogy with the Reindeer (_cf._ Jacobi, 1931: 237), the fawns might be expected to drop their antlers in late winter.