Document 3Q3bneVpKYBMV3QYM1kkw98bD

Haaheis, Pennsylvania Hay ?5, 1954 H* M* Jackson, Manager Industrial Health Program Johns-Harrrilie Ccrpor&tlcn Twenty-Two East Fortieth Street New fork, 16, Nov Toi-k Dear Kr* Jackson: Please accept our thanks for your letter of May 21st and the enclosed copy of Standard Practices for Air Hygiene Surrey Sampling and laboratory procedures* I an sure that this will be helpful in the program that wo havo under way here* Could you give ess tbs name of scas outside engineering company that ~ls capable of -analyzing various conditions in the Textile Production Departments and Bake reccnsaendations for equipment that would improve the Air Hygiene? During the period since we installed the dust control / and removal system in the various departments thsra must have been con-' eidcrable advancement in this branch of engineering. It would be very Kach-apprciatid>if you know of one or two engineering concerns jdio. are specializing ia this field, if you would kindly eend us their names* Again, nany thanks for your help. Very truly yours. xsrs 0. H. Cilley