The Burnt Offering (Leviticus 1) and The Grain Offerings (Leviticus 2)

Leviticus 1:  You bring your offering of the livestock--of the herd and of the flock.  If his offering is a burnt sacrifice of the herd, let him offer a male without blemish; he shall offer it of his own free will at the door of the tabernacle of meeting before the Lord.

Leviticus 2:   When anyone offers a grain offering to the Lord, his offering shall be of fine flour.  And he shall pour oil on it, and put frankincense on it.