Where a broker's contract employed him to purchase timber options for a percentage of the net profits from the sale of the timber, and certain land was purchased in order to obtain the timber thereon, the word "timber" in the contract of employment could not be extended to include the land, so as to entitle the broker to a percentage of the net profits of the sale of the land, as well as the timber. Wilson v. James (Wash. Sup. '10), 106 P. 618.