September and October are the best months, but we shall meet with fungi earlier. However, I will promise you a long day's ramble or two in search of fungi when the time comes. In the mean time let us keep our eyes open, and I dare say we shall even now, in the month of June, meet with a few interesting species. We will go into some of the meadows near home to-day, and I am much mistaken if we shall not be able to find St. George's mushroom. It is a very delicious fungus, and perfectly wholesome. I gathered a few specimens the other day, and now that the weather is warm, I doubt not we shall meet a good number; so, besides collecting bottles, we will take a basket, and Jack shall be the carrier. Now separate yourselves and search this pasture well. "Here are a lot of fungi growing in a ring," exclaimed May. Let me look. You have found what we wanted. This fungus is the _Agaricus gambosus_, or St. George's mushroom. See how closely the gills are set together; they are yellowish-white in colour; the top is thick and fleshy; the stem, too, is very thick. Few fungi, comparatively speaking, grow so early in the year, and you could not mistake _gambosus_ for any other kind. What? You think the smell rather strong. Well, I confess this fungus has a strong and not a very pleasant odour. Put what you have collected into the basket; you will find that the taste is better than the smell. Here are some specimens with the top cracked and split; these are a little older, but they are very good. We will put them with the rest. "Oh, papa," exclaimed Jack, "I was looking at that ash tree in the hedge, and I thought I saw a mouse run up the trunk." I suspect it was not a mouse, but a bird, called, from its habit of running up trees, the tree-creeper. Let us get a little nearer. I see I am right; there the little bird is, running rapidly up the tree; now he stops, as if examining the bark; now he is off again. How very like a mouse, to be sure! It is one of the smallest of our British birds, and, though common enough, is not very often seen, except by those who, caring for such things, use their eyes well. Now he has gone to the opposite side of the tree; off he goes again and explores another trunk. By means of its long curved claws and stiff forked tail-feathers, this prettily marked bird is enabled to climb with great rapidity. It remains in this country all the year, and is more abundant in plantations and parks where there are plenty of trees. It makes its nest in a hollow tree, or on the inner side of the bark of a decayed one. The little bird lays many eggs, from six to nine, in the month of April; they are nearly white, with a few pinkish spots, generally at the larger end of the egg. It utters a few pleasing but feeble notes. The young ones are, as you may suppose, tiny little things. You should notice the curved pointed beak of this bird, and the stiff tail-feathers it presses against the tree as a fulcrum to aid it in its ascent.