mother completely, especially if--as may possibly be the case--the male cuckoo will not help in feeding. This is the simplest explanation, I think; yet, as I have often said before, we must not always judge the ways of birds or animals or insects either by strict utility, or by crediting them with semi-supernatural intelligence. They have their fancies, likes and dislikes, and caprices. There are circumstances--perhaps far back in the life-history of their race--of which we know nothing, but which may influence their conduct unconsciously still, just as the crusades have transmitted a mark to our minds to-day. Even though an explanation may satisfy us, it is by no means certain that it is the true one, for they may look at matters in an entirely different manner from what we do. The effect of the cuckoo's course is to cause an immense destruction of insects, and it is really one of the most valuable as well as the most welcome of all our birds. The thin pipe of the gnat heard at night is often alluded to, half in jest, by our older novelists. It is now, I think, dying out a good deal, and local where it stays. It occurred to me, on seeing some such allusion the other day, that it was six years since I had heard a gnat in a bedroom--never since we left a neighbourhood where there had once been marshy ground. Gnats are, however, less common generally--exclusive, of course, of those places where there is much water. All things are local, insects particularly so. On clay soils the flies in summer are most trying; black flies swarm on the eyes and lips, and in the deep lanes cannot be kept off without a green bough. It requires the utmost patience to stay there to observe anything. In a place where the soil was sand, with much heath, on elevated ground, there was no annoyance from flies. There were crowds of them, but they did not attack human beings. You might sit on a bank in the fields with endless insects passing without being irritated; but everywhere out of doors you must listen for the peculiar low whir of the stoat-fly, who will fill his long grey body with your blood in a very few minutes. This is the tsetse of our woods. STEAM ON COUNTRY ROADS.