requisite, and all the expenses of putting up every such fence, and of taking down, repairing, rebuilding or securing such building, wall or other thing shall be paid by the owner thereof” (10 & 11 Vic. c. 34, s. 75). Great care must be observed in seeing that the notices are properly prepared and served in accordance with sections 266 and 267 of the Public Health Act 1875, and the town clerk, as the legal adviser of the sanitary authority, should be consulted (in this as in all cases requiring notices) by the surveyor. It sometimes happens that a tall chimney shaft, wall, or other erection may apparently be perfectly safe, whereas in a high gale of wind it may be blown down. Many tall chimney shafts rock in an alarming manner in a high wind,[149] but he would be a bold surveyor who would order some of these expensive structures to be pulled down in the face of the opposition he would receive.[150] A curious case of some difficulty in connection with dangerous buildings has come under my notice, where a house was built with the approval of the urban authority, and after completion and occupation the attention of the surveyor was called to the fact that a large piece of rock at the back of the house, from which the site had been excavated for the purpose of its erection, was in a dangerous condition and likely to fall at any moment and cause great damage to property, or even loss of life. The clerk to the urban authority, when consulted, was of opinion that the surveyor could do nothing in the matter, as the case was not met in any way by the Act. The following is given as a specimen notice to serve with reference to a dangerous structure: NOTICE. _To_ (A)                                _the Owner of the ruinous and dangerous_ (B)                                _under-mentioned and the occupier thereof._ Whereas a certain (B)          situated at          within the borough of         , in the county of       , is deemed by me, the undersigned, the surveyor of the mayor, aldermen and burgesses of the said borough of       , acting by the council as the urban sanitary authority for the same, to be in a ruinous state and dangerous to passengers or to the occupiers of neighbouring buildings: Therefore take notice, that you are hereby required, in pursuance of the provisions in that behalf of the Public Health Act 1875, and the Towns Improvement Clauses Act 1847, to take down, repair or secure the said (B). And that if you do not or if neither of you does begin to take down, repair, or secure the said (B)          within the space of three days after this notice has been served upon you or put upon the said premises, and complete such taking down, repairing or securing as speedily as the nature of the case will admit, I shall cause complaint thereof to be made before two justices in accordance with the provisions of the statutes aforesaid. Dated this        day of        18  .