Where a real estate agent is instructed by the principal to send persons inquiring about the property to the latter, the agent is not required to notify the principal of the fact that he has sent persons to him, in order to recover commissions on a sale to any of such persons. Clifford v. Meyer, 6 Ind. App. 633, 33 N. E. 127, 34 N. E. 23. Compare Secs. 359, 360.