Franklin Chase Clarke

“ They result simply from fear, as any one may easily prove for himself: the animal appreciates the power acting on it, and the uselessness of resisting the injury or the supposed injury inflicted. Here, of course, we must allow animals a certain amount of intelligence for such perceptions. After the animal has made resistance, and finds itself incapable of removing the obstacle, it lapses into quietude, to act again only when it supposes the restraint has been removed. ”

“ Here, the chalk-line seemed intimately connected with the phenomenon.
Kircher varied the experiment by erasing the chalk-line. He also tied a ribbon around the legs of the fowl, and then removed it; and the hen still remained quiet. According to him the imagination of the fowl plays an important part; and he laid great stress on the acts of "tying" and "chalking."
Prof. Czermak does not attach much importance to Kircher's conclusions, in his first lecture. But, in his second, he seems to believe that the "tying and chalking" exert some slight influence through the imagination. ”

“ Then I remove my hands, making-no "passes," nor any more movements than are necessary to take them away from the animal. Now I have the fowl stretched out before me motionless, and breathing deeply; the eyes are generally open. Some hens are more easily subjected to this experiment than others. Tame hens will allow much handling, and are hence never good subjects. A very wild fowl is an excellent animal upon which to make these experiments. ”