Mr. Presiding Justice McSurely delivered the opinion of the court.
5. Evidence, § 350*—when parol evidence of collateral agreement admissible. Where an agreement to sell real estate requires that possession be delivered to vendee before conveyance, but fixes no time for such delivery, parol evidence of a contract fixing such time for delivery is competent, and has no tendency to vary the terms of a written instrument. 6. Vendor and purchaser, § 164*—when delay in delivery of possession unreasonable. Where an agreement for the sale of real estate dated March 25th gave vendor a period of more than two years in which to make conveyance, but was construed to require delivery of possession to vendee within a reasonable time, and where there was evidence of a verbal agreement to deliver such possession April 15th, a finding that vendor unreasonably delayed to deliver such possession held warranted by the evidence, where it appeared that as late as May 18th such possession had not been delivered, although there was evidence that at such last mentioned date vendor had not perfected his title, for the reason that under the agreement the time for conveyance and the time for delivery of possession were not the same, and therefore failure to perfect title did not excuse vendor for unreasonable delay in delivering possession to vendee.