Show pure air for pure milk every cow stable should havo a 0 system of ventilation to keep the air fresh and pure and tile the cows cons com coin for trible without exposing thorn them to injurious drafts ind bad odors in tho the fit tible Ind indicate lente tint that lie hi ventilation Is 13 deficient at least BOO cubic feet ot of aar space should he provided for each cow farmers who desire to provide provid 0 proper ventilation la in cow stables co can n ob obtain information on this his point ly it y applying to the ho dairy division of tile the united states department ot of agriculture |