In many sections of Belgium through which I had to pass I encountered large areas of swamp and marshy ground, and, rather than waste the time involved in looking for better underfooting--which I might not have found, anyway--I used to plod right through the mud. Apart from the discomfort of this method of traveling and the slow time I made, there was an added danger to me in the fact that the "squash-squash" noise which I made might easily be overheard by Belgians and Germans and give my position away. Nobody would cross a swamp or marsh in that part of the country unless he was trying to get away from somebody, and I realized my danger, but could not get around it. It was a common sight in Belgium to see a small donkey and a common, ordinary milch cow hitched together, pulling a wagon. When I first observed the unusual combination I thought it was a donkey and ox or bull, but closer inspection revealed to me that cows were being used for the purpose. From what I was able to observe, there must be very few horses left in Belgium except those owned by the Germans. Cows and donkeys are now doing the work formerly done by horses and mules. Altogether I spent nearly eight weeks wandering through Belgium and in all that time I don't believe I saw more than half a dozen horses in the possession of the native population. One of the scarcest things in Germany, apparently, is rubber, for I noticed that their motor trucks, or lorries, unlike our own, had no rubber tires. Instead, heavy iron bands were employed. I could hear them come rumbling along the stone roads for miles before they reached the spot where I happened to be in hiding. When I saw these military roads in Belgium for the first time, with their heavy cobblestones that looked as if they would last for centuries, I realized at once why it was that the Germans had been able to make such a rapid advance into Belgium at the start of the war. I noticed that the Belgians used dogs to a considerable extent to pull their carts, and I thought many times that if I could have stolen one of those dogs it would have made a very good companion for me, and might, if the occasion arose, help me out in a fight. But I had no way of feeding it and the animal would probably have starved to death. I could live on vegetables which I could always depend upon finding in the fields, but a dog couldn't, and so I gave up the idea. The knack of making fire with two pieces of dry wood I had often read about, but I had never put it to a test, and for various reasons I concluded that it would be unsafe for me to build a fire even if I had matches. In the first place, there was no absolute need for it. I didn't have anything to cook, nor utensils to cook it in even if I had. While the air was getting to be rather cool at night, I was usually on the go at the time and didn't notice it. In the daytime, when I was resting or sleeping, the sun was usually out.