The amount of money to be appropriated and offered shall not exceed the following: (a) for corn - Two Hundred Dollars ($200.00) for the best five acres or more, One Hundred Dollars ($100.00) for the second best and Fifty Dollars ($50.00) for the third best, or half the amounts for three acres; (b) for mule colt - not more than One Hundred Dollars ($100.00) for the best, Seventy-five Dollars ($75.00) for the second best and Fifty Dollars ($50.00) for the third best; (c) for horse colt - the same as for a mule colt; (d) for cow - not more than Fifty Dollars ($50.00) for the best, Thirty Dollars ($30.00) for the second best and Twenty Dollars ($20.00) for the third best; (e) for hog - the same as for a cow. Other premiums for excellence in raising agricultural, horticultural and livestock products may be given in proportion. No exhibit or entry of any kind which has once been awarded a prize shall be eligible at any other time for a prize.