*198. Kinds of Boroughs.*--The Municipal Corporations Act of 1835 made provision for 178 boroughs in England and Wales and stipulated conditions under which the number might be increased from time to time by royal charter. In not a few instances the charters of boroughs at the time existing were of mediaeval origin. Since 1875 new charters (p. 188) have been conferred until the number of boroughs has been brought up to approximately 350. For the obtaining of a borough charter no fixed requirement of population is laid down. Each application is considered upon its merits, and while the size and importance of an urban community weigh heavily in the decision other factors not infrequently are influential, with the consequence that some boroughs are very small while some urban centers of size are not yet boroughs. Of the present number of boroughs, seventy-four, or about one-fifth, are county boroughs. By the act of 1888 it was provided that every borough which had or should attain a population of 50,000 should be deemed, for purposes of administration, a separate county, and should therefore be exempt from the supervision exercised over the affairs of the municipal boroughs by the authorities of the administrative counties. Any borough with a population exceeding the figure named may be created a county borough by simple order of the Local Government Board. Unlike the ordinary municipal borough, the county borough is not represented in the council of the county in which the borough lies; on the contrary, the council of the borough exercises substantially an equivalent of the powers exercised normally by the county council, and it is, to all intents and purposes, a council of that variety. Much the larger portion of the English boroughs are, however, simple municipal boroughs, whose activities are subject to a supervision more or less constant upon the part of the county authorities.