_The contention here is that the separation of the Slaughter-houses from the Pound will impede ventilation, and that a partition six feet high is sufficient for the purpose, the Butchers denying that any “offensive effluvia arise from a live animal.” It is assumed that the reason for this Bye-law is based primarily upon the idea that the animals are distressed by seeing the process of slaughtering whilst waiting their turn for the pole-axe. It is further objected that the spring hinges are likely to lead to accidents to men and beasts._ REPLY. The chief considerations in support of this Bye-law are given in the extract of my Report on 1st June, 1875, above quoted. I may, however, say, in addition, that the possibility of the animals waiting for slaughter seeing the process of killing other animals, formed no part of the argument. Again, the Butchers’ objection on the score of ventilation is based upon the supposition that the Pound must necessarily be of the same height as the Slaughter-house, which does not follow, as the accompanying Diagram will show:-- [Illustration] The spring hinges ordered in this Bye-law will ensure the door between the Slaughter-house and Pound being kept closed, but the Butchers may, if they prefer it, hang the doors by balance weights, so as to slide up and down like an ordinary sash window, by which means the direful consequences predicted as likely to result from the use of spring hinges may be avoided. BYE-LAW VIII. That where any Slaughter-house or Pound cannot be sufficiently ventilated by openings on to the public ways, or on to other open places, it shall be ventilated from the roof, which shall be so constructed as to admit freely of the escape of air, and that rings for burning gas be fixed in the roof so as to increase the upward current when a-light, and that both Slaughter-house and Pound be properly lighted either from the public ways or other open spaces, and where that be not practicable, then from the roof. OBJECTIONS. _The chief arguments relate to matters quite irrelevant, and are very confused and unintelligible. The only part of the “objection” belonging to this Bye-law is that which refers to the proposal for increasing the efficiency of the ventilation by rings of gas, which the Butchers characterise as “absurd.”_ REPLY. The question raised here is as to the proper mode of ventilation and lighting, and seeing that it would be worse than folly to perpetuate the evil of allowing an intercommunication between the side walls of some of the present ill-devised, and worse-kept, Slaughter-houses in Aldgate High Street, your Committee were driven to the alternative of requiring both light and ventilation to be sought for in the roof. The ring of gas spoken of so contemptuously by the Butchers will have the effect of rarefying the vitiated air in the Slaughter-houses during the process of slaughtering, and by producing an up-current, quicken the ventilation.