12th July (1917)

Watched a bargee and his missus manoeuvre a barge through the locks and met several of the boys out with their tarts and wished I had my tart to stroll about with.  Having my usual 3d supper in Y.M.C.A whose name be praised!  We had a lecture on gas today (by a sergeant who has been gassed) and put on the goblin helmets and things and breathed through the respirators – rather uncanny.