All stationery, printing, paper, fuel, for the use of the General Assembly and other departments of government, shall be furnished, and the printing, binding and distributing of the laws journals, dep

Sec. 15. All stationery, printing, paper, fuel, for the use of the General Assembly and other departments of government, shall be furnished, and the printing, binding and distributing of the laws journals, department reports and all other printing and binding and the repairing and furnishing the halls and rooms used for the meetings of the General Assembly and its committees, shall be performed under contract to be given to the lowest responsible bidder, below such maximum price and under such regulations as shall be prescribed by law. No member or officer of any department of the government shall in any way be interested in such contracts, and all such contracts shall be subject to the approval of the Governor, Auditor and Treasurer.