At each annual meeting of the society, which shall be held on the second Tuesday of December or such other date as may be provided in the bylaws of the society, the board of directors shall report in writing the number of members and the financial condition of their society, the quantity and character of property owned by it, and the quality and cost of improvements of the same; the number and value of premiums awarded at their annual fair; the number and character of animals and articles exhibited; a statement of the probable quantity of the staple commodities of the county, and prices current thereof, and such other information in relation to the agricultural and mechanical interests of the county as they may deem worthy of general notice; and a copy of the report so made shall be transmitted to the director of the department of agriculture, to be disposed of as provided in section 262.370.