2. It is sometimes necessary to prove that a certain instrument or name is in the handwriting of a particular person; that is done either by the testimony of a witness, who saw the paper or signature actually written, or by one who has by sufficient means, acquired such a knowledge of the general character of the handwriting of the party, as will enable him to swear to his belief, that the handwriting of the person is the handwriting in question. 1 Phil. Ev. 422; Stark. Ev. h. t.; 2 John. Cas. 211; 5 John. R. 144; 1 Dall. 14; 2 Greenl. R. 33; 6 Serg. & Rawle, 668; 1 Nott & M'Cord,554; 19 Johns. R. 134; Anthon's N. P. 77; 1 Ruffin's R. 6; 2 Nott & M'Cord,400; 7 Com. Dig. 447; Bac. Ab. Evidence, M; Dane's Ab. Index, h. t.