Aggregate Mining Corporation was incorporated five years ago. It is authorized to issue 500,000 shares of $100 par value 6% preferred stock. It is also authorized to corporation has the following transactions: Mar. 1 Declares a cash dividend of $6 per share. Mar. 30 Pays the cash dividend. Jul. 10 Declares a property dividend of 1/2 ton of limestone per share when the price of limestone is $25 per ton