In a minute more the last knot was released, when she gathered the whole line into a bundle, looked at those around her with that look of contempt which we have described, and departed at once in search of other mischief. The air of triumph and contempt was enough to convince any one of her opinion of what she had done. If this feat was the result of instinct, the lexicons must find another definition for that word. There were six white men who witnessed the act, and the verdict of all was that she had solved a problem which few children of her own age could have done. Every movement was controlled by reason. The tracing out of cause and effect was too evident for any one to doubt. [Illustration: NATIVE VILLAGE AT GLASS GABOON] Almost any animal can be taught to perform certain feats, but that does not show the innate capacity. The only true measure of the faculty of reason is to reduce the actor to his own resources, and see how he will render himself under some new condition, otherwise the act will be, at least in part, mechanical or imitative. In all my efforts to study the mental calibre of animals I have confined them strictly to their own judgment, and left them to work out the problem alone. By this means only can we estimate to what extent they apply the faculty of reason. No one doubts that all animals have minds, which are receptive in some degree. But it has often been said that they are devoid of reason, and controlled alone by some vague attribute called instinct. Such is not the case. It is the same faculty of the mind that men employ to solve the problems that arise in every sphere of life. It is the one which sages and philosophers have used in every phase of science. It differs in degree, but not in kind. This kulu-kamba knew the use of a corkscrew. This she had acquired from seeing it applied by men. While she could not use it herself with success, she often tried and never applied it to the wrong purpose. She would take the deck broom and scrub the deck, unless there was water on it, in which event she always left the job. She did not seem to know the purpose of sweeping the deck, and never swept the dirt before the broom. This was doubtless imitative. She only grasped the idea that a broom was used to scrub the deck, but she failed to observe the effect produced. However, it cannot be said with certainty to what extent she was aware of the effect, but it is inferred from the fact that she did not try to remove the dirt. She knew what coal was intended for, and often climbed into the bunker and threw it down by the furnace door. The furnace door and steam gauge were two things that escaped her busy fingers. I do not know how she learned the danger of them, but she never touched them. She had to be watched to keep her from seizing the machinery. For this she seemed to have a strong desire, but did not know the danger she incurred.