There are no powers by which butchers can be compelled to abandon private slaughter-houses, and use those provided by the urban authority, so long as the bye-laws of the authority are not infringed; but as the law stands at present, private slaughter-houses may be licensed (10 & 11 Vic. c. 34, ss. 125, 126) or registered (10 & 11 Vic. c. 34, s. 127), and the only manner in which they could be closed (which would then compel the butcher to use the public abattoir) would be by putting the 129th section of the same Act in force, which states that the justices before whom any person is convicted of killing or dressing cattle contrary to the provision of the Act, or of the non-observance of any bye-law or regulation of the local authority, in addition to the penalty may suspend _the licence_ for any period not exceeding two months; or in the case of the owner of any _registered_ slaughter-house may forbid for any period not exceeding two months, the slaughtering of cattle therein. For a second or other subsequent like offence, in addition to the penalty the justices may revoke the licence or absolutely forbid the slaughtering of cattle in the particular house or yard. In such an event the local authority may refuse to grant any _licence_ whatever to the person whose licence has been revoked, or on account of whose default the slaughtering of cattle in any _registered_ slaughter-house has been forbidden. With reference to the establishment anew of the business of a slaughterer of cattle in London, the following particulars required to be deposited by the applicant with the Metropolitan Board of Works will be useful. A plan of the premises and sections of the building drawn to a scale of ¹⁄₄-inch to the foot and showing the proposed or existing arrangements for drainage, lighting, ventilation, and water supply, with a key plan of the locality, have to be deposited, as well as replies to the following questions: (1.) State what place for the accommodation or poundage of the cattle about to be slaughtered is provided; if such place has an entrance way for the cattle otherwise than through the slaughter-house; if separated from the slaughter-house by a brick partition with a door; and also what provision is made therein for watering animals. (2.) State if slaughter-house and its poundage is within 20 feet of an inhabited building; and if it has any entrance opening directly on a public highway. (3.) State if the entrance to the premises is apart from and independent of any shop or dwelling-house; if from a street at the side or rear; and also the height of the entrance gates. (4.) State the dimensions of the slaughter-house, length, breadth, height to eaves, and construction of the roof; and give similar information about the poundage. (5.) State if slaughter-house and poundage are drained by glazed pipes communicating with public sewer, or how; how drains are trapped; and if gratings have openings greater than three-eighths of an inch across.