We do not think that the jury found, or that the testimony shows, that there was any agreement between the parties, before the written communication of the defendants of September thirtieth was received by the plaintiff. This note did not make an agreement. It was a proposition, and must have been accepted by the plaintiff before either party was bound, in contract, to the other. The only overt action which is claimed by the plaintiff as indicating on his part an acceptance of the offer, was the purchase of the stuff necessary for the work, and commencing work, as we understand the testimony, upon that stuff.
We understand the rule to be, that where an offer is made by one party to another when they are not together, the acceptance of it by that other must be manifested by some appropriate act. It does not need that the acceptance shall come to the knowledge of the one making the offer before he shall be bound. But though the manifestation need not be brought to his knowledge before he becomes bound, he is not bound, if that manifestation is not put in a proper way to be in the usual course of events, in some reasonable time communicated to him. Thus a letter received by mail containing a proposal, may be answered by letter by mail, containing the acceptance. And in general, as soon as the answering letter is mailed, the contract is concluded. Though one party does not know of the acceptance, the manifestation thereof is put in the proper way of reaching him.
In the case in hand, the plaintiff determined to accept. But a mental determination not indicated by speech, or put in course of indication by act to the other party, is not an acceptance which will bind the other. Nor does an act, which, in itself, is no indication of an acceptance, become such, *Page 470 because accompanied by an unevinced mental determination. Where the act uninterpreted by concurrent evidence of the mental purpose accompanying it, is as well referable to one state of facts as another, it is no indication to the other party of an acceptance, and does not operate to hold him to his offer.
Conceding that the testimony shows, that the plaintiff did resolve to accept this offer, he did no act which indicated an acceptance of it to the defendants. He, a carpenter and builder, purchased stuff for the work. But it was stuff as fit for any other like work. He began work upon the stuff, but as he would have done for any other like work. There was nothing in his thought formed but not uttered, or in his acts that indicated or set in motion an indication to the defendants of his acceptance of their offer, or which could necessarily result therein.
But the charge of the learned judge was fairly to be understood by the jury as laying down the rule to them, that the plaintiff need not indicate to the defendants his acceptance of their offer; and that the purchase of stuff and working on it after receiving the note, made a binding contract between the parties. In this we think the learned judge fell into error.
The judgment appealed from must be reversed, and a new trial ordered, with costs to abide the event of the action.
All concur, but ALLEN, J., not voting.
Judgment reversed, and new trial ordered.