The director shall prepare, and have available for use, indices of Pennsylvania laws, digests of such public laws of this and other States as may be of use for legislative information, records and files of all bills and resolutions presented in either branch of the General Assembly, loose leaf files of acts of Assembly, catalogue files of such reports of departments, boards, and commissions, and other public documents of this State, as well as general books and pamphlets, as pertain to the work and service of the bureau, files of newspaper and periodical clippings, and of such other printed matter as may be proper for the purposes of the bureau. The director shall also, when requested by Members of the General Assembly or the Governor or heads of departments, promptly procure available information, not on file in the bureau, relating to legislation of other States, and investigate the manner in which laws have operated. He shall establish a system of exchanges with such other States as is expedient and practicable. He shall from time to time prepare and publish such bulletins, pamphlets, and circulars, containing information collected by the bureau, and such compilations of this or other States, as he shall deem to be of service to the Governor, the several departments of the State Government, the Members of the General Assembly, and the citizens of the Commonwealth. From time to time he shall cause to be prepared, for adoption or rejection by the General Assembly, codes, by topics, of the existing general statutes, arranged by chapters or articles and sections under suitable headings, and he shall add thereto lists of statutes of the existing law to be repealed. He shall assist in or supervise, when called upon by any proper authority, or when directed by the General Assembly so to do, the compilation and preparation of any general revision and codifications of the existing laws of the Commonwealth.