A lot of work is carried on at night
You are right, a lot of work is carried on at night but that is the workmens choice & any night work I have ever had men on before has been paid for as time and a half. Further the Chief Point is that it is more than one and a half times more unpleasant to be shelled at night than at day and with machine gun fire & barbed wire I think there is a bigger difference still.
The poem was by Sigfried Sasoon.
Willy has managed an extension of a forthnight. I expect L. Smith worked it for him