There are various sub headings in this Chapter and we are concerned in this appeal with only a few sections under the sub title "Provi sion of housing accommodation for the poorer classes", This sub title in the Chapter opens with section 2841: 2841 (1) "If the Corporation, upon considera tion of a representation from the Commissioner or other information in its possession, is satisfied that within any area in any part of the City it is expedient to provide housing accommodation for the poorer classes and that such accommodation can be conveniently provided without making an im provement scheme, it shall cause such area to be defined on a plan and pass a resolution authorising the Commission and the Commissioner shall there upon be empowered to provide such accommodation " * * * * * * Section 284J provides that "the Commissioner may for the purposes of the foregoing section on behalf of the Corporation (a) acquire any land including any buildings thereon as a site for the erection of buildings for the poorer classes".