The face of a written instrument. That which is contained on theface of a deed (without any aid from the knowledge of the circumstances under which itis made) is said to be within its four corners, because every deed Is still supposed to bewritten on one entire skin, and so to have but four corners.To look at the four corners of an instrument is to examine the whole of it, so as toconstrue it as a whole, without reference to any one part more than another. 2 Smith,Lead. Cas. 295.