All fees, receipts and income collected or received by any department, board, bureau, commission, agency or office or institution of the state shall be paid into the State Treasury or deposited in an approved state depository to the credit of the General Fund of the State of Alabama or to the credit of a special fund if the latter is required by law. No such payment or deposit shall be subject to withdrawal by any such department, board, bureau, commission, agency, office or institution, and all appropriations made to any such department, board, bureau, commission, agency, office or institution shall be specified amounts and shall be subject to allotment as provided in this article. Anything herein to the contrary notwithstanding, however, this article shall not apply to the fees, receipts and income (other than appropriations) of the Department of Conservation and Natural Resources, the Department of Agriculture and Industries or any educational, correctional or eleemosynary institution, or to any endowment or trust fund or gifts to any such institutions, or to the income from such endowments or trust funds, or to private funds belonging to students or inmates of such institutions, nor shall such funds be subject to any allotment under this article or be taken into consideration in making any allotment or prorating of appropriations under this article, and all appropriations made to any such institutions are hereby declared to be in addition to such fees, receipts and other income, and all allotments from such appropriations shall be paid over to such institution, and when such allotments are received by such institutions, the same shall be deposited in any bank or banks in the State of Alabama, which have been duly designated and qualified as state depositories, for the use and benefit of such institution, and such funds shall be available only on the check of such institution depositing them, which is hereby authorized to withdraw such funds at its discretion.