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THIS paper presents a brief report on the effect of age on the egg production and hatching results of Bronze turkey females during the period 1927 and 1933 inclusive. Some data are also presented on the comparative mortality and rate of growth of the progeny. In compiling the data the age of the males to which the females were mated was disregarded. Egg Production All reports so far published, regarding the effect of age on egg production deal with the domestic fowl. Brody, Henderson, and Kempster (1923) reported that the egg production of the flock studied declined 12 percent each successive year. Jull (1928) and Hall and Marble (1931) have shown that the decline in egg production with age is greater in the case of the Barred Plymouth Rock, Rhode Island Red, and Wyandotte breeds than in the case of the White Leghorn. They as well as Atwood (1928) and . . .

IT IS common experience that chickens and other domesticated birds grow better if hatched at certain seasons than they do if hatched at other seasons of the year. Thus Goodale (1926) found that chicks hatched in the early part of the season grew more rapidly, to 30 days of age, than did those hatched later. Upp and Thompson (1927) likewise observed that there were differences in the rate of growth of chicks hatched at different seasons of the year. They conclude that weather has an influence on the growth of chickens. Somewhat similar results are reported in this paper for turkeys hatched only a few weeks apart. There is also a distinct indication of compensatory growth of the later hatched, initially slower growing birds. The same phenomenon has been demonstrated in the growth of razor clams by McMillin and Weymouth (1935). MATERIALS AND METHODS The data presented in this paper . . .