INNATE APPETITE.
McKenzie, in his Phrenological Essays, mentions the following curious fact, witnessed by Sir James Hall. He had been engaged in making some experiments on hatching eggs by artificial heat, and on one occasion observed in one of his boxes a chicken in the act of breaking from its confinement. It happened that just as the creature was getting out of the shell, a spider began to run along the box, when the chicken darted forward, seized and swallowed it.