for retaining 'bulky boxes of slides and large files of log sheets. 

 The film can "be stored in reels or in individual E.A.M. punch cards. 

 Film is more adaptable to the automatic data processing systems 

 under consideration than prints produced by older methods. More 

 rapid and detailed extraction of data, greater geographic coverage, 

 and wider distribution of information at lover unit cost than ever 

 before is possible by this method. 



18 



