There is also in the hunting pattern of interest an intellectual element. Watson does not note curiosity among the instincts because it does not manifest itself at birth, but it appears later as the watchful and exploratory attitude which determines the character of action,—whether, for example, it shall be attack or flight. The invention of the bow and arrow, the construction of a trap, the preparation of poison, indicated a scientific curiosity in early man. Activities of this kind were interesting because they implied life or death. The man who constructed the poisoned arrow visualized the scene in which it was to be used, saw the hunt in anticipation. The preparation for the chase was psychologically part of the chase. The modern scientific man uses the same mental mechanism but with a different application. He spends long months in his laboratory on an invention in anticipation of his final “achievement.” The so-called “instinct for workmanship” and the “creative impulse” are “sublimations” of the hunting psychosis. The making of a trap was a “problem”, and any problem is interesting, whether the construction of a wireless or the solving of a puzzle. Modern occupations or “pursuits” are interesting or irksome to the degree that they have or have not a problematical element: The convict makes bricks, digs the earth, builds, and all his occupations have a meaning and an end. Sometimes, even the prisoner takes an interest in what he is doing. He then wishes to work more skillfully, more advantageously. But let him be constrained to pour water from one vessel into another, or to transport a quantity of earth from one place to another in order to perform the contrary operation immediately afterwards, then I am persuaded that at the end of a few days the prisoner would strangle himself or commit a thousand crimes, punishable with death, rather than live in such an abject condition and endure such torments.[7] The following description of a scientific adventure of a creative man, which I transcribe from an earlier paper, illustrates perfectly the psychological identity of a scientific quest with the pursuit of game: