Dinwiddie had ruled as the deputy of Lord Albemarle. When Lord Loudon came over in July, 1756, to assume the military command in the colonies, he became the titular governor of Virginia; but he was never in his province in person, and Dinwiddie ruled for him till January, 1758, when he sailed for England. CRITICAL ESSAY ON THE SOURCES OF INFORMATION. SINCE the enumeration of the records of Maryland was made in another volume,[627] the Maryland Historical Society, having now in custody the early archives of the province, has begun the printing of them, under the editorship of Mr. William Hand Browne, three volumes of which having been thus far published.[628] The publication committee of that society have also made to the legislative assembly of the State a printed report,[629] dated November 12, 1883, in which they give an account of the efforts made in the past to care for the documents. To this they append a _Calendar of State Archives_, many of which come within the period covered by the present chapter.[630] The general histories of Maryland have been characterized in another place.[631] Of one of them, Chalmers’s, some further mention is made in the present volume.[632] Two works of a general character have been published since that enumeration was made. One of these is the _Maryland_ (Boston, 1884) of William Hand Browne, a well-written summary of the history of the palatinate prior to the Revolutionary period.[633] Mr. Browne’s familiarity with the Maryland archives was greatly helpful in this excellent condensation of Maryland’s history. Mr. John A. Doyle has made special use of the colonial documents in the Public Record Office, in the chapters (x. and xi.) which he gives to the province in his _English in America, Virginia, Maryland and the Carolinas_, London, 1882. There have been some valuable papers of late embraced in the _Johns Hopkins University Studies in Historical and Political Science_, edited by Professor Herbert B. Adams, which touch Maryland, particularly its institutional history. Such are Edward Ingle’s _Parish Institutions of Maryland_ (_Studies_, 1st series, no. vi.); John Johnson’s _Old Maryland Manors_ (no. vii.);[634] Herbert B. Adams’s _Maryland’s influence upon land cessions to the United States, with minor papers on George Washington’s interest in Western lands, the Potomac Company and a National University_ (3d series, no. 1);[635] Lewis W. Wilhelm’s _Maryland Local Institutions, the Land System, Hundred, County, Town_ (nos. v., vi., and vii.).