2. Copies cannot be given in evidence, unless proof is made that the originals, from which they are taken, are lost, or in the power of the opposite party; and in the latter case, that notice has been given him to produce the original. See 12 Vin. Abr. 97; Phil. Ev. Index, h. t.; Poth. Obl. Pt. 4, c. 1, art. 33 Bouv. Inst. n. 3055. 3. To prove a copy of a record, the witness must be able to swear that he has examined it, line for line, with the original, or has examined the copy, while another person read the original. 1 Campb. R. 469. It is not requisite that the persons examining should exchange, papers, and read them alternately. 2 Taunt. R. 470. Vide, generally, 3 Bouv. Inst. n. 3106-10; 1 Stark. R. 183; 2 E. C. L. Rep. 183; 4 Campb. 372; 2 Burr.1179; B.N.P.129; 1 Carr. & P. 578. An examined copy of the books of unincorporated banks are not, per se, evidence. 12 S. & R. 256. See 13 S. & R. 135, 334; 2 N. & McC. 299.