Find My Past hold a medical admissions entry for him -- details:-
Medical unit -- 34 Casualty Clearing Station (this was based at Vequemont, Somme Deaprtment, France)
Regiment -- 1st Battalion, Scottish Rifles
Squadron or Company -- 'B' Company
Service No -- 7158
Name -- White, G
Age -- 34 years
Completed years in Army -- 15 years 5 months
Time in the field -- 1 year 11 months
Wounds -- Gun Shot Wounds to left arm and left leg
Admitted -- 18/7/1916
Transferred - 18/7/1916
To -- 20 Ambulance Train
There is no detail as to where he was being transferred to, his wounds would have needed treatment in one of the many army hospitals in France.
The 1st Battalion were involved in the Battle of the Somme which started on the 1st July 1916. As he was admitted to the 34 Casualty Clearing Station on the 18th July, he would have been wounded a couple of days prior. A look at the Battalion's war diaries shows that on Sunday, 16th July, the Battalion were involved in heavy fighting at High Wood and records the casualties that day as 'Officers - 1 killed; 1 wounded; Other Ranks 2 killed; 46 wounded' -- George would have been one of the forty six wounded.