KIDNEYS AND SUPRA-RENAL CAPSULES.
The kidneys present a lobulated appearance in the fetus, which is their permanent type among some animals, as the bear, the otter, and cetacea.
The supra-renal capsules are organs which appear, from their early and considerable development, to belong especially to the economy of the fetus. They are distinctly formed at the second month of embryonic life, and are greater in size and weight than the kidneys. At the third or fourth month, they are equaled in bulk by the kidneys; and at birth, they are about one third less than those organs.