I had, however, noted a stream in the contrary direction—that is, westwards and southwards towards the Channel and England. You can first trace the beginnings of this stream under the sound of the guns (which you never see). A stretcher brought to a temporary shelter by men whose other profession is to play regimental music; a group of men bending over a form in the shelter; a glimpse of dressings and the appliances necessary for tying up an artery or some other absolutely urgent job. That shelter is called the Aid Post. From it the horizontal form goes to (2) the Advanced Dressing Station, where more attention is given to it; and thence to (3) the Field Ambulance proper, where the case is really diagnosed and provisionally classed. By this time motor-ambulances have been much used; and the stream, which was a trickle at the Aid Post, has grown wider. The next point (4) is the Casualty Clearing Station. Casualty Clearing Stations are imposing affairs. Not until the horizontal form reaches them can an operation in the full sense of the word be performed upon it. The Clearing Station that I saw could accommodate seven hundred cases, and had held nearer eight hundred. It was housed in an extensive public building. It employed seven surgeons, and I forget how many dressers. It had an abdominal ward, where cases were kept until they could take solid food; and a head ward; and an officers’ ward; immense stores; a Church of England chapel; and a shoot down which mattresses with patients thereon could be slid in case of fire.
Nearly seven hundred operations had been performed in it during the war. Nevertheless, as the young Colonel in charge said to me: “The function of a Clearing Station is to clear. We keep the majority of the cases only a few hours.” Thence the horizontal forms pass into (5) Ambulance Trains. But besides Ambulance trains there are Ambulance barges, grand vessels flying the Union Jack and the Red Cross, with lifts, electric light, and an operating-table. They are towed by a tug to the coast through convenient canals.
You may catch the stream once more, and at its fullest, in (6) the splendid hospitals at Boulogne. At Boulogne the hospital laundry work is such that it has overpowered the town and has to be sent to England. But even at Boulogne, where the most solid architecture, expensively transformed, gives an air of utter permanency to the hospitals, the watchword is still to clear, to pass the cases on. The next stage (7) is the Hospital Ship, specially fitted out, waiting in the harbour for its complement. When the horizontal forms leave the ship they are in England; they are among us, and the great stream divides into many streams, just as at the rail-head at the other end the great stream of supply divides into many streams, and is lost.
Nor are men the only beings cared for. One of the strangest things I saw at Boulogne was a horse-hospital, consisting of a meadow of many acres. Those who imagine that horses are not used in modern war should see the thousands of horses tethered in that meadow. Many if not most of them were suffering from shell wounds, and the sufferers were rather human. I saw a horse operated on under chloroform. He refused to come to after the operation was over, and as I left he was being encouraged to do so by movements of the limbs to induce respiration. Impossible, after that, to think of him as a mere horse!
But before I left the British lines I did manage to glimpse the British Army, the mysterious sea into which fell and were swallowed up, and from which trickled the hundreds of small runlets of wounded that converged into the mighty stream of pain at Boulogne. I passed by a number of wooden causeways over water-logged ground, and each causeway had the name of some London street, and at last I was stopped by a complicated wall of sandbags with many curves and involutions. To “dig in” on this particular landscape is impracticable, and hence the “trenches” are above ground and sandbags are their walls. I looked through a periscope and saw barbed wire and the German positions. I was told not to stand in such-and-such a place because it was exposed. A long line of men moved about at various jobs behind the rampart of sandbags; they were cheerfully ready to shoot, but very few of them were actually in the posture of shooting. A little further behind gay young men seemed to be preparing food. Here and there were little reposing places.
A mere line, almost matching the sand-bags in colour! All the tremendous organisation in the rear had been brought into being solely for the material sustenance, the direction, and the protection of this line! The guns roared solely in its aid. For this line existed the clearing stations and hospitals in France and in Britain. I dare say I saw about a quarter of a mile of it. The Major in command of what I saw accompanied me some distance along the causeways into comparative safety. As we were parting he said:
“Well, what do you think of our ‘trenches’?”
In my preoccupied taciturnity I had failed to realise that, interesting as his “trenches” were to me, they must be far more interesting to him, and that they ought to have formed the subject of conversation.
“Fine!” I said.
And I hope my monosyllabic sincerity satisfied him.