" 

 == Microform from the 1940s onward == 

 The ""History"" section only covers up to 1938.  Presumably there were more developments over the years.  There should also be a section on the current status of microform recording.  This would presumably include the transition to digital archival techniques as well as present-day areas where microform is still used.  The ""Uses"" section touches on this, but is not really comprehensive.   "