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Source A and Source B were written for Revision Library as original, representative teaching material. Source A is an account in the style of a Royal Army Medical Corps medical officer's diary, written to represent the kind of first-hand experience described in verified historical accounts of Casualty Clearing Stations during the opening of the Battle of the Somme; it is not the testimony of a real, named individual, and no genuine wartime document has been reproduced or quoted. Source B is an illustrative log-style table styled on historical research into casualty flow during a major offensive; its figures are representative estimates for teaching purposes, not an authentic official record.
SOURCE A: from a diary written in the style of a Royal Army Medical Corps medical officer at a Casualty Clearing Station near the Somme, 1 July 1916.
Nothing prepared us for this morning. The barrage lifted a little after seven and within the hour the first ambulances were already coming down the road from the Advanced Dressing Stations, and by midday they had not stopped once. We have beds and tents for perhaps four hundred, and by evening we had taken in closer to a thousand, with more arriving every hour. Every surgeon in the station has been operating since noon without a proper break, and the orderlies are sorting the wounded on stretchers laid out across the grass outside because there is nowhere else to put them. The walking wounded, at least, can be sent on by train once their dressings are checked, which frees a little space, but the stretcher cases needing surgery are backing up faster than we can take them. We were told to expect heavy casualties today. I do not think anyone expected quite this many.
SOURCE B: an illustrative log showing the approximate number of wounded soldiers received at a single Casualty Clearing Station over four days during a major offensive.
Day of the offensive | Approximate wounded received that day | Note
Day 1 | about 950 | far above the station's planned capacity of around 400
Day 2 | about 600 | still well above planned capacity
Day 3 | about 350 | close to planned capacity
Day 4 | about 200 | flow easing as the advance slowed
Note: these figures are illustrative estimates for teaching purposes, representing the kind of surge and gradual easing typically described in accounts of Casualty Clearing Stations during a major set-piece offensive, not the recorded totals of a genuine, named station.