Battalion Diary – February 6, 1917
Location: Witley Camp, North Surrey
Officer-in-charge Engineering and Bombing Schools reported that better results could be obtained in these two branches, if the detail handed them for instruction were placed under them for half a day instead of for 1 hour periods. Accordingly this change was agreed to.
Strength: Taken off: Four (4) other ranks transferred to C.A.S.C, T.D. (Canadian Army Service Corps, Temporary Duty) at Shorncliffe.
Strength generally refers to the men of unit or battalion.
Taken off strength or Struck Off Strength (SOS) means to that men are transferred out of the battalion or unit.
Taken on strength (TOS) means that men have been added to the unit or battalion.