An impossible contract is one which the law will not hold binding upon the parties, because of the natural or legal impossibility of the performance by one party of that which is the consideration for the promise of the other. 7 Wait, Act A Def. 124.
Impossible contracts, which will be deemed void in the eye of the law, or of which the performance will be excused, are such contracts as cannot be performed, either because of the nature of the obligation undertaken, or because of some supervening event wfilch renders the performance of the obligation either physically or legally impossible. 10 Amer. A Eng. Enc. Law, 176.