All through June and into July you should have a round of birds’ nests that you visit daily, and to which you can take your friends and visitors--that is, if you live in or near the country. One will be in the big unused chimney of the house, perhaps, and that will be the first; then one in the barn, or in a bird-house in the yard; or in the pear-or apple-tree hole; one in the lilac or honeysuckle bushes, and then down into the orchard, out into the meadow, on into the woods and back--taking in twenty to thirty birds’ nests with eggs and young! Did you ever do it? Can you do it this summer? Don’t you think it would be quite as exciting and interesting as going to the circus? I can do it; and if you come out to Mullein Hill in June or July, any one of my small boys will take you on his “birds’ nest round.” IV You should camp out--even if you have to pitch your tent in the back yard or up on the roof! You should go to sleep on a bed of boughs,--pine, or spruce, or hickory, if possible,--or swing your hammock between the trunks of sweet-smelling forest trees, and turn your face up to the stars! You will never want to sleep in a room with closed windows after that. To see the stars looking down upon you; to see the tree-tops swaying over you; to feel the fresh night wind stealing across your face and breathing into your very soul--yes, you must sleep at least _one_ night this summer right out on a bed of boughs; but with a blanket of wool and a piece of sail-cloth or rubber coat over you and under you, and perhaps some mosquito-netting. V But you must _not_ build a fire in the woods, unless you have a guide or older people with a permit along. Fires are terrible masters, and it is almost as dangerous to build a fire in the woods as to build one in the waste-paper basket in the basement of some large store. Along the seashore or by the margin of a river or lake, if you take every precaution, it might be safe enough; but in the woods, if camping out, make all preparations by clearing a wide space down to the bare ground, then see that it is bare ground and not a boggy, rooty peat-bed beneath, that will take fire and smoulder and burn away down under the surface out of sight, to break through, perhaps, a week after you have gone, and set the whole mountain-side afire. Build your fire on bare, sandy earth; have a shovel and can of water at hand, and put the fire out when you are done with it. It is against the law in most States to set a fire out of doors after the 1st of April, without a permit from the fire-warden.