"Every Sanitary Authority _shall_ make and enforce such bye-laws as are requisite for the following matters (that is to say): (_a_) for fixing the number of persons who may inhabit a house, or part of a house, which is let in lodgings; (_b_) for the registration of houses so let or occupied; (_c_) for the inspection of such houses; ... (_d_) for enforcing drainage for such houses, and for promoting cleanliness and ventilation in such houses; (_e_) for the cleansing and lime-washing at stated times of the premises; (_f_) for the taking of precautions in case of any infectious disease." In another matter, which the Vestries had long opposed, their hostility was overborne. They were now required to appoint "an adequate number of fit and proper persons as sanitary inspectors," and, in case of their failure to do so, the Local Government Board was enabled, on the complaint of the Council, to order the appointment of a proper number. The new Central Authority, directly representative of the whole of London, was not constituted the chief sanitary authority for London, nor even a sanitary authority. It was given power to make bye-laws for the prevention of nuisances of various sorts in London, except as regarded the "City," to license cow-houses, and slaughter-houses, to appoint Inspectors to inspect them, and also dairies and milkshops, and it could extend the number of infectious diseases to be notified. But most important of all was the power given to the County Council (by Section 100), which enacted, on it being proved to the satisfaction of the Council, that any Sanitary Authority (except the Commissioners of Sewers of the City) had made default in doing their duty under this Act with respect to the removal of any nuisance, the institution of any proceedings, or the enforcement of any bye-laws, the Council might institute any proceedings and do any act which the Authority might have instituted and done, such Authority being made liable to pay the Council's expenses in so doing. And, furthermore, Section 101 provided that "when complaint is made by the Council to the Local Government Board that a Sanitary Authority have made default in executing and enforcing any provision which it is their duty to execute or enforce under the Act, or of any bye-law made in pursuance thereof, the Local Government Board, if satisfied after due inquiry that the Sanitary Authority have been guilty of the alleged default, and that the complaint cannot be remedied under the other provisions of this Act, shall make an order limiting the time for the performance of the duty of such authority in the matter of such complaint. If such duty is not performed by the time limited in the order, the order may be enforced by writ of mandamus, or the Local Government Board may appoint the Council to perform such duty," and the expenses were to be paid by the Sanitary Authority in default.