1. Some Miscellaneous Observations on the Growth of Birds, their Specific Gravity, and on the Stomach of Fishes in Relation to Digestion

Extract

On the Growth of Birds.—The author's observations on this subject are chiefly confined to the martin, the common fowl, the turkey, and goose. They all tend to show a rapid growth, varying in degree according to the habits of the species. The young martin was found on leaving its nest heavier than the parent bird; and this the growth, as to time, of about twenty days, reckoning from the hatching of the egg. A turkey poult, the day it quitted the egg, weighed one ounce and three quarters; in five months it had increased to ten pounds. A gosling, in thirty-four days, had increased in weight from six ounces to six pounds.