The particular season of the year in which the letter was written was described by a witness as being the ‘lush’ season for milk when the available supply is about double that of other months of the year. This letter resulted in a meeting of some of the farmers to consider the situation. As a result of the request made by some of these farmers at the meeting defendants sent out a notice dated June 1, 1937, reading: ‘We have agreed to let Jay D. Wilkinson’s trucks continue to haul the milk they have been hauling to our milk plant for the first ten (10) days of June, 1937. Disregard the notices you received today May 31 until June 11th.’On June 10th, Powe wrote a letter to Wilkinson in which he said:‘We have caused to be served on all farmers affected by the same a duplicate of the attached letter, *280 due to a verbal agreement made in consideration of the wish of some of those affected the date stated was extended to June 11, 1937.‘Since we understand that you have a contract of some nature with many of the farmers in question we are enclosing a copy of said letter, so that you may govern yourself accordingly.’