Extract from Brigade war diary
Platoon Commanders of 2/23rd Bn London Regiment reconnoitred Army Line. Brigade Major attended Gas Demonstrated at ST SYLVESTRE CAPPEL. R.A.F. Officer lectured in grounds in vicinity of Brigade Headquarters on “Communication between Aircraft and Infantry”. 1/6th Bn Cheshire Regiment relieved on working party by 2/17th Bn London Regiment of 90th Brigade: 1/6th Bn Cheshire Regiment moved to billets vacated by 2/17th Bn London Regiment.