DIR 1972_stuff
   DIR Bug_Fixes
   DIR Collinson_v6
   DIR Dan_Cross_v10
   DIR Dan_Cross_v8
   DIR Dennis_v1
   DIR Dennis_v2
   DIR Dennis_v3
   DIR Dennis_v4
   DIR Dennis_v5
   DIR Dennis_v6
   DIR Documentation
   DIR Henry_Spencer_v7
   DIR Keith_Bostic_v7
   DIR Ken_Wellsch_v6
   DIR McIlroy_v0
   DIR Nijmegen_v7
   DIR Norman_v10
   DIR Norman_v9
   DIR PDP7
   DIR Tim_Shoppa_v6
   DIR Torsten_Hippe_v7
   BIN v7addenda.tar.gz