After lunch we hunted out No. 3 Field Ambulance, whose personnel came largely from Toronto. Colonel McPherson of Toronto, the officer commanding, seemed glad to see me, as he always did, and showed me over the ambulance and billets where the officers were quartered. I took water samples for examination of their drinking water supply, which was not above suspicion. The garden at the rear of their temporary home was vibrant with sunshine; the pears, trained against the walls in the rectangular manner so much in vogue in France, and the peach trees, were already bursting into clusters of pink and white blossoms. I picked some beautiful blue pansies to press in my pocket book and send home as souvenirs of my first visit to Ypres. Upon leaving the ambulance we passed over the river by the bridge, where soldiers were filling water carts by means of hand pumps; passed the ancient ramparts on the river's edge and through the hamlet of St. Jean to Wieltze, where the advanced dressing station of the ambulance was located. Here I saw my friend Captain Brown and collected water samples for examination. Returning to Ypres we went out to Brielen to see the A.D.M.S. of the Canadian Division and there found some letters from home waiting me. While in the office a sudden commotion among a group of soldiers outside and the raising of glasses skyward drew us forth to watch an aerial battle in progress. With the aid of borrowed glasses I could see six machines in the sky manoeuvring for position. Two in particular seemed to be closely engaged when the German suddenly turned tail and fled. A white puff of smoke beside him indicated that the Archibalds had been watching the combat closely. A second, third and fourth followed in rapid succession until suddenly at the fifteenth burst the Taube began to drop and flutter down, like a leaf falling from a forest tree on a quiet October day. Five minutes later, far out in the salient, we saw a second driven down in a straight nose dive, making the third for that day in the vicinity of Ypres. One might watch for months, as I afterwards did, without seeing another aeroplane brought down. When we were on our way back from Ypres on our return, a horse ridden by an officer suddenly curvetted across the road in front of us. Rad pulled up the car to a full stop, and the officer pulled in his horse at the same time. The horse reared, his front feet caught in the fender, he pawed the air wildly for a moment and, losing his balance, he fell over backward rolling on the officer. Soldiers quickly caught the horse and pulled him to one side, and greatly to our relief the officer was able to get up and walk. It was characteristic of the British officer that he had no feeling towards us on account of his accident; on the contrary, bruised and aching as he must have been though he would not admit it, he came over to the car and apologized for having caused us inconvenience. It is the British way of doing things.