The department is authorized to receive and to pay over to the State Treasurer any moneys from any source, including contributions made for the purposes of said department by individuals, corporations or associations, or any amounts from the sale of any printed matter or other material. Such receipts when so turned over to the State Treasurer shall become part of the General Fund of the state, provided any such contributions shall be deemed to be appropriated for the purposes designated by the contributors and shall be allotted in accordance with law. The department is further empowered to enter into a contract or contracts from time to time for the purposes of this chapter, such obligations to be met from any appropriation or other funds made available to it, as herein provided. No provision of this chapter shall be construed to restrict or prohibit the department from receiving or accepting funds from any source, including funds from federal, state or municipal governments or from private sources, for any of the purposes, or activities related thereto, of this chapter.