Flavius Josephus, Antiquities of the Jews
William Whiston, A.M., Ed.

[224] I WILL now, however, make mention of a few of our laws which belong to purifications, and the like sacred offices, since I am accidentally come to this matter of sacrifices. These sacrifices were of two sorts; of those sorts one was offered for private persons, and the other for the people in general; and they are done in two different ways. In the one case, what is slain is burnt, as a whole burnt-offering, whence that name is given to it; but the other is a thank-offering, and is designed for feasting those that sacrifice. I will speak of the former. Suppose a private man offer a burnt-offering, he must slay either a bull, a lamb, or a kid of the goats, and the two latter of the first year, though of bulls he is permitted to sacrifice those of a greater age; but all burnt-offerings are to be of males. When they are slain, the priests sprinkle the blood round about the altar; they then cleanse the bodies, and divide them into parts, and salt them with salt, and lay them upon the altar, while the pieces of wood are piled one upon another, and the fire is burning; they next cleanse the feet of the sacrifices, and the inwards, in an accurate manner and so lay them to the rest to be purged by the fire, while the priests receive the hides. This is the way of offering a burnt-offering.