All real estate, loans, and investments now belonging to the various county and township school funds, except those invested as hereinafter provided, shall be liquidated without extension of time, and the proceeds thereof and the money on hand now belonging to said school funds of the several counties and the city of St. Louis, shall be reinvested in registered bonds of the United States, or in bonds of the state or in approved bonds of any city or school district thereof, or in bonds or other securities the payment of which are fully guaranteed by the United States, and sacredly preserved as a county school fund. Any county or the city of St. Louis by a majority vote of the qualified electors voting thereon may elect to distribute annually to its schools the proceeds of the liquidated school fund, at the time and in the manner prescribed by law. All interest accruing from investment of the county school fund, the clear proceeds of all penalties, forfeitures and fines collected hereafter for any breach of the penal laws of the state, the net proceeds from the sale of estrays, and all other moneys coming into said funds shall be distributed annually to the schools of the several counties according to law.