the measure of protection afforded the part of the Local to labour employed on Authority, by this work and was adopted over the fact that it is the kind of work which is very familiar to many builders. in what way and to what extent we should 5. We have considered a wider field of the system of grouping which press for the adopted in certain areas for the further repair of war damaged houses. Wherever the Local Authority is carrying out, or proposes to carry out, work of sufficient volume and sufficiently homogeneous and concentrated to enable "mass.