As soon as he found himself safely down, he threw his riding-stick upon the grass, and ran off toward the trap. The trap was placed upon a small stone by the side of a larger one. It was in a very snug and sheltered place, almost out of view. In fact it probably would not have been observed by any ordinary passer-by. Phonny ran up to the trap, and took hold of it. He lifted it up very cautiously. He shook it as well as he could, and then listened. He thought that he could hear or feel some slight motion within. He became very much excited. He put the trap down upon the high rock, and began opening up the lid a little, very gently. [Illustration: THE TRAP.] The trap was of the kind called by the boys a box-trap. It is in the form of a box, and the back part runs up high, to a point. The lid of the box has a string fastened to it, which string is carried up, over the high point, and thence down, and is fastened to an apparatus connected with the spindle. The spindle is a slender rod of wood which passes through the end of the box into the interior. About half of the spindle is within the box and half without. There is a small notch in the outer part of the spindle, and another in the end of the box, a short distance above the spindle. There is a small bar of wood, with both ends sharpened, and made of such a length as just to reach from the notch in the end of the box, to the notch in the spindle. This bar is the apparatus to which the end of the string is fastened, as before described. When the trap is to be set, the bar is fitted to the notches in such a manner as to catch in them, and then the weight of the lid, being sustained by the string, the lid is held up so that the squirrel can go in. The front of the box is attached to the lid, and rises with it, so that when the lid is raised a little the squirrel can creep directly in. The bait, which is generally a part of an ear of corn, is fastened to the end of the spindle, which is within the trap. The squirrel sees the bait, and creeps in to get it. He begins to nibble upon the corn. The ear is tied so firmly to the spindle that he can not get it away. In gnawing upon it to get off the corn, he finally disengages the end of the spindle from the bar, by working the lower end of the bar out of its notch; this lets the string up, and of course the lid comes down, and the squirrel is shut in, a captive. When the lid first comes down, it makes so loud a noise as to terrify the poor captive very much. He runs this way and that, around the interior of the box, wondering what has happened, and why he can not get out as he came in. He has no more appetite for the corn, but is in great distress at his sudden and unaccountable captivity.