Section 2. That all revenue derived from the following sources, to wit: the taxes on collateral inheritances and the per centage assessed upon any bank or railroad, or coal mining, or railroad and coal mining, or improvement company charter, all taxes assessed on distilleries and breweries, on billiards rooms, bowling saloons and ten pin alleys, on new counties, on threatrical, circus and managerie exhibitions, and on eating houses, beer houses and restaurants, and all such revenues as the legislature may from time to time set apart for the purposes mentioned in this act, shall, so soon as the same shall be received at the treasury, be paid over to the said commissioners, who shall forthwith proceed to purchase the debts of the commonwealth, on the terms and for the purposes set forth in the first section of this act.