All fines imposed by courts-martial or other military courts, whether collected by such courts or by the civil authorities, shall be turned over by the courts or by the civil officer collecting the same to the Adjutant General, who shall keep an accurate account of the same. The Adjutant General, after deducting the costs of holding the courts and the collection of the fines, shall annually turn the balance in to the treasury of the Commonwealth, to be placed to the credit of the Literary Fund.