It was a good sized building and there were several large rooms in it.

Many is the night that I have passed there, and I see it now distinctly in my mind.

In the largest room, there were the tables neatly prepared, white and clean, for the hours of active work which began towards midnight when the ambulances brought back the wounded from the front.

The orderlies would be lying about taking a rest until their services were needed, and the doctors with their white aprons on would be sitting in the room or in their mess near by.

The windows were entirely darkened, but in the building was the bright light and the persistent smell of acetylene gas.