The Red Cross Barge by Marie Belloc Lowndes

Still draped in the black-and-silver trappings laboriously hung by the women of Valoise to do funeral honour to Dr. Rouannes, the parish church, when Jeanne Rouannes entered it, was already transformed into a hospital ward; and, as she came slowly back to normal conditions of heart and brain, she was amazed to see all that these capable, if rough-looking, German medical orderlies had accomplished.

Not only had every kind of bed already been commandeered from the houses round, but through medieval glass which the Great Revolution had spared, the sun shone on huge cases containing every kind of surgical requisite ready for immediate use.