A promissory note, payable on demand to the bearer, made and issued by a person or persons acting as bankers and authorized by law to issue such notes. The definition is confined to notes issued by incorporated banks in 2 Dan. Neg. Inst. § 1664. See 2 Pars. Bills & N. 88. Bank bills and bank notes are equivalent terms, even in criminal cases; 4 Gray 416. The power thus to issue is not inherent or essen- tial in banking business, and is not neces- sarily implied from the conference of a general power to do banking business. It must be distinctly, and in terms conferred in the incorporating act, or it will not be enjoyed. Morse, Banking, c. viii.; 11 Op. Att.-Gen. 334. For many purposes they are not looked upon as common promissory notes, and as such mere evidences of debt, or security for money. In the ordinary transactions of business they are recognized by general consent as cash. The business of issuing them being regulated by law, a certain credit attaches to them, that renders them a convenient substitute for money; 2 Hill, Ν. Υ. 241; 1 id. 13. The practice is, therefore, to use them as money; and they are a good tender, unless objected to; 9 Pick. 542; 19 Johns. 322;8 Ohio 169; 11 Me. 475; 5 Yerg. 199; 6 Ala. N. S. 226; 3 T. R. 554; 7 id. 64; 5 Dowl. & R. 289. See 3 Halst. 172; 4 N. H. 296; 4 Dev. & Β. 435. They pass under the word "money" in a will, and, generally speak- ing, they are treated as cash; 19 Johns. 115; 7 id. 476; 6 Hill, N. Y. 840; but see 29 Ind. 495, as to their receipt by a sheriff in pay- ment of an execution. When payment is made in bank notes, they are treated as cash and receipts are given as for cash; 1 Ohio 189, 524; 15 Pick.177; 5 G. & J. 158; 3 Hawks 328; 5 J. J. Marsh. 643; 12 Johns. 200; 1 Sch. & L. 318, 319; 1 Rop. Leg. 3; 28 Gratt. 605; 1 Burr. 452. It has been held that the payment of a debt in bank notes discharges the debt; 1 W. & S. 92; 11 Ala. 280; 2 Dan. Neg. Inst. § 1676; 1 Gratt. 359. See 13 Wend. 101; 11 Vt. 516; 9 Ν. Η. 365; 2 Hill, S. C. 509; but not when the payer knew the bank was insolvent. The weight of authority is against the doctrine of the extinguishment of a debt by the delivery of bank notes which are not paid, when duly presented, in reasonable time. But it is undoubtedly the duty of the person receiving them to present them for payment as soon as possible; 2 Pars. Bills & N. 94: 11 Wend. N. Y. 9; 11 Vt. 516;9 Ν. Η. 365; 10 Wheat. 333; 6 Mass. 182; 18 Barb. 545; 10 Ohio St. 188; 22 Me. 88;7 Wis. 185; 6 B. & C. 373. Bank notes are governed by the rules ap- plicable to other negotiable paper. The y are assignable by delivery; Rep. t. Hard. 53; Dougl. 236. The holder of a note is entitled to payment, and cannot be affected by the fraud of a former holder, unless he is proved privy to the fraud; 1 Burr. 452; 4 Rawle 185; 10 Cush. 488; 2 Dan. Neg. Instr. § 1680; 32 Conn. 278. The bond fide holder who has received them for value is protected in their possession even against a real owner from whom they have been stolen. Payment in forged bank notes is a nullity; 7 Leigh 617; 2 Hawks 326; 3 Pa. 330; 5 Conn. 71; but the taker of such must give prompt notice that they are counterfeit, and offer to return them; 11 Ill. 137. But where the bank itself receives notes purporting to be its own, and they are forged, it is otherwise; 10 Wheat. 333. See 6 B. & C. 373. If a note be cut in two for transmission by mail, and one half be lost, the bond fide holder of the other half can recover the whole amount of the note; 6 Wend. 378; 6 Munf. 166; 4 Rand. 186; Dan. Neg. Inst. § 1696. At common law, as choses in action, bank notes could not be taken in execution; Hardw. Cases 53; 1 Archb. Pr. 258; 9 Cro. Eliz. 746. The statute laws of the several states, or custom, have modified the common law in this respect, and in many of them they can be taken on execution; 4 N. H. 198; 15 Pick. 173; 20 id. 352; 35 Vt. 430. This is the case in New York; but they are not to be sold; 10 Barb. 157, 596. Consult Story, Bills; Story, Notes; Parsons, Notes and Bills; Byles, Bills; 2 Dan. Neg. Instr.; Bigelow, Neg. Instr.; note to Miller & Race, Sm. Lead. Cas.