Show tubes for air man matter the tube use IMI for conveying mail known asi the post wils was esteb aaris 11 lri and beilin ill fit shyh bayt the chicago inter intel the lait idel of aion appear sto to bu be due to dellis papin iu in 1107 the kimt in malice put inlo cital I 1 tile enn va Is not until the year alss n mr latimer r alark introduced his bis system or of tran port ind succeeded in ili laying a rubt iu london between Al argate and the Kl elul ul I 1 postoffice post office byu by u line of or tubes in liichi ar ricas paned the ic cl linders were by india rubber bunds bands to make bauke them ni fit A vacuum bui iv in ill front and cola pressed afir wits cuillo ell to act behind |