An agent sold a tract of land subject to the ratification of his principal, with an agreement that, if not ratified, he would refund to the purchaser the money paid by him; the principal refused to ratify. In a suit brought by the purchaser for the money so paid by him Held, that evidence of a subsequent contract between the parties was irrelevant, unless it was proposed to show that in making such subsequent contract the matter of the money to be refunded under the first contract was in some way adjusted. Evans v. George, 80 I11. 51.