As "Stonehenge" and "High Elms" have introduced some improvements, I may as well quote the former:

The Figure of 4 trap is composed of a large square piece of stone or slate propped up in a peculiar manner with three pieces of wood, which are arranged in the shape of a 4.

In examining this figure it will be seen to consist of a perpendicular limb or upright, of a horizontal one or stretcher, and of a short slanting stick, as the third is called. The upright is usually cut about half an inch wide, shaved to a thin edge at top, but "High Elms" recommends it to have a forked foot to keep it from twisting, and a notch in it to prevent the stretcher slipping down. The slanting stick has a notch cut in it half an inch from its upper end to receive the top of the upright, while its lower end is shaved off to fit in a notch in the upper surface of the front of the stretcher. Lastly, the stretcher has this notch in front, and another notch cut in its side by which it is caught by the upright and held in its place.

A bait being tied to the external end of the stretcher, and a stone placed so that it will lie flat on the ground, the whole is ready for setting, which is effected as follows: Raise the stone, and support it by the notched end of the slanting stick held in the left hand, the notch itself looking downwards, then place the upright with one end on the ground and the other in this notch, and let it carry the weight of the stone, which will have a tendency to tilt up the slanting stick still held down by the left hand; finally, hitch the middle notch of the stretcher in the upright, with its front notch facing upwards, then bring the lower end of the slanting stick down to this front notch, drop it in, and the trap is set. Of course, it requires that each part shall be carefully adapted to the others, but when the trap is seen set it will be readily understood, practice being, however, required to set it properly.

I quite agree with "High Elms" that the footed upright is an improvement; but I am inclined to doubt the advantage of the double notch between the upright and the stretcher. I have tried both, and I cannot find that there is any great superiority in his plan; but, perhaps, though I have exactly followed his directions as given in the Field, I may have omitted some point of practical importance. In setting the Figure of 4 trap, the height of the upright and the size and weight of the stone will be proportioned to the animal for which it is set. I do not like the trap myself, as it cannot be concealed so well as the steel trap, and, indeed, has no advantage except in cheapness. Dozens of them may be set in the woods, and if stolen little harm is done, as the cost is barely a penny apiece if made in large numbers. I have also known pheasants caught by the head and killed in them, the flesh with which they are baited being often attractive to tame-bred birds, which usually are fed with more or less of it in their rearing.

Mr. G. S. Purden has informed me that he has succeeded in capturing birds alive with this trap by hollowing out the ground where the stone falls.

Another "deadfall" for taking capercailzie in Norway is described by Mr. Yarnell in his "British Birds":

"Where the trees grow thickly on either side of a footpath, two long pieces of wood are placed across it; one end of these rests on the ground, the other being raised a foot and a half, or somewhat more, from the surface, and supported by a piece communicating with a triangular twig, placed in the centre of the path, and so contrived that on being slightly touched the whole fabric falls; a few stones are usually placed upon the long pieces of wood to increase the rapidity of the drop by the additional weight. Birds running along the footpath attempt to pass beneath the barrier, strike the twig, and are killed by the fall of the trap."

Taking birds by means of bird-lime is my next consideration. Bird-lime is made either from boiled oil or from holly-bark, but the making of it is not "worth the candle," it being so easily bought from any professional bird-catcher.

To those who wish to make their own, I commend the following: Take half a pint of linseed oil and put it into an old pot, or any vessel that will stand the fire without breaking. The vessel should not be more than one-third full. Place it over a slow fire and stir it until it thickens as much as required. This can be ascertained by cooling the stick in water and trying if it will stick to the fingers. When sufficiently boiled, pour into cold water, and it will be found ready for use.