1200 Reasonable stipula- t ions, when impl ied . Necessary incidents implied. Ante, p . 1173. Joint and several . Ante, p. 1182. Defined. Ante, p.1155. Ante, p.1192. Poet, p. 1201 . Post, p. 1201 . Ant', p . 2192. Ante, p.1192. Ante, p. 1192. Ante, p . 1193 . Aok, p.1193. 72d C ONGRESS . SESS. II . C H. 128. FEB RUARY 27, 1933 . CROSS REFERENCES Ante, p .1199.
Interpretatio n in sense p romisor beli eved promisee to rely, se e section 56 0 . Ante, p .1162.
Interpretation of doubtful words, see section 275. SEC . 566. REASONABLE STIPULATIONS, WHEN IMPLIED .-Stipulations which are necessary to make a contract reasonable, or conformable to usage, are implied, in respect to matters concerning which the contract manifests no contrary intention . SEC. 567 . NECESSARY INC IDE NTS IMPLIED.-All things that in law ur usage are considered as incidental to a contract, or as necessary to carry it into effect, are implied therefrom, unless some of them are expressly mentioned therein, when all other things of the same class are deemed to be excluded . Cross'REF seneca Incident follows principal, see sections 280 and 1728 . Ante, p.1163 ; peat, p. 1346 . Time of perform- SEC . 568 . TIME OF PERFORMANCE OF CONTRACT :If no ti me is ance . specified for the performance of an act required to be performed, a reasonable time is allowed . If the act is in its nature capable of being done instantly-as, for example, if it consists in the payment of money only-it must be performed immediately upon te thing to be done being exactly ascertained . CR OSS REranta voR Delay in, where time not of essence, see section 360 . SEC . 569. WHEN JOINT ANP SEVERAL .-Where all the parties who unite ina promise receive some benefit from the consideration, whether past or present, their promise is presumed to be joint and several . SEC. 570 . SAME .-A promise, made in the singular number, but executed by several persons, is presumed to be joint and several . Caoss REFESENCs Contracts, Joint and several, see sections 427 et seq . Executed and execs- SEC . 571 . EXECUTED AND EXECUTORY CONT RACTS, WHAT.-An tory contracts,
executed contract is one, the object of which is fully performed. All others are executory . UNLAWFUL
CHAPTER 31 .-UNLAWFUL CONT RACTS CONT RACT S . SEC. 572. WHAT Is UNLAWFUL-That is not lawful which is 1 . Contrary to an express provision of law ; 2. Contrary to the policy of express law, though not expressly prohibited ; or, 3. Otherwise contrary to good morals . CROSS REFERENCES Conditions, when void, see sections 219 to 221 . Contract obtained through duress, menace, fraud, undue influence, or mis- tak e, see secti on 497 . Contracts i n restraint of marriage, see section 578 . Contracts ih restraint of trade, see section 576 . Duress, see section 499 . Fraud, see 'sections 501 et seq . Menace, see section 500 . Mistake, see sections 506 et seq . Undue influence, see section 505 .
