Effect of default as to that promise which should be first performed, in contract consisting of reciprocal promises.— When a contract consists of reciprocal promises, such that one of them cannot be performed, or that… 

Effect of failure to perform at fixed time, in contract in which time is essential.— When a party to a contract promises to do a certain thing at or before a specified time, or certain… 

Agreement to do impossible act.— An agreement to do an act impossible in itself is void. Contract to do an act afterwards becoming impossible or unlawful.— A contract to do an act which, after the… 

Reciprocal promise to do things legal, and also other things illegal.— Where persons reciprocally promise, firstly, to do certain things which are legal, and, secondly, under specified circumstances, to do certain other things which are… 

Alternative promise, one branch being illegal.— In the case of an alternative promise, one branch of which is legal and the other illegal, the legal branch alone can be enforced. Illustration A and B agree… 

Application of payment where debt to be discharged is indicated.— Where a debtor, owing several distinct debts to one person, makes a payment to him, either with express intimation, or under circumstances implying, that the… 

Application of payment where debt to be discharged is not indicated.— Where the debtor has omitted to intimate and there are no other circumstances indicating to which debt the payment is to be applied, the… 

Application of payment where neither party appropriates.— Where neither party makes any appropriation, the payment shall be applied in discharge of the debts in order of time, whether they are or are not barred by… 

Effect of novation, rescission, and alteration of contract.— If the parties to a contract agree to substitute a new contract for it, or to rescind or alter it, the original contract, need not be performed.…