The elms of the neighbourhood, wherever they can be utilised as posts, are unmercifully wired, wires twisted round, holes bored and the ends of wire driven in or staples inserted, and the same with the young oaks. Many trees are much disfigured from this cause, the bark is worn off on many; and others, which have recovered, have bulging rings, where it swelled up over the iron. The heads of large nails and staples are easily discovered where the wire has disappeared, sometimes three or four, one above the other, in the same tree. A fine avenue of elms which shades part of a suburb appears to be dying by degrees--the too common fate of elms in such places. How many beautiful trees have thus perished near London?--witness the large elms that once stood in Jews' Walk, at Sydenham. Barking the trunks for sheer wanton mischief is undoubtedly the cause in some cases, and it has been suggested that quicksilver has occasionally been inserted in gimlet holes. The mercury is supposed to work up the channels of the sap, and to prevent its flow. But may not the ordinary conditions of suburban improvement often account for the decay of such trees without occult causes? Sewers carry away the water that used to moisten the roots, and being at some depth, they not only take the surface water of a storm before it has had time to penetrate, but drain the lower stratum completely. Then, gas-pipes frequently leak, so much so that the soil for yards is saturated and emits a smell of gas. Roots passing through such a soil can scarcely be healthy, and very probably, in making excavations for laying pipes the roots are cut through. The young trees that have been planted in some places are, I notice, often bored by grubs to an extraordinary extent, and will never make sound timber. One July day, while walking on this road, I happened to look over a gateway and saw that a large and prominent mansion on the summit of some elevated ground had apparently disappeared. The day was very clear and bright, sunny and hot, and there was no natural vapour. But on the light north-east wind there came slowly towards me a bluish-yellow mist, the edge of which was clearly defined, and which blotted out distant objects and blurred those nearer at hand. The appearance of the open arable field over which I was looking changed as it approached. In front of the wall of mist the sunshine lit the field up brightly, behind the ground was dull, and yet not in shadow. It came so slowly that its movement could be easily watched. When it went over me there was a perceptible coolness and a faint smell of damp smoke, and immediately the road, which had been white under the sunshine, took a dim, yellowish hue. The sun was not shut out nor even obscured, but the rays had to pass through a thicker medium. This haze was not thick enough to be called fog, nor was it the summer haze that in the country adds to the beauty of distant hills and woods.