I do not wish to appear sentimental by offering a rebuke to those who indulge in the sport of hunting; but much cruelty could be obviated without losing any of the pleasure of the hunt. I have always made it a rule to spare the mother with her young. Whether or not animals feel the same degree of mental and physical pain as man, they do, in these tragic moments, evince for one another a certain amount of concern. This imparts a tinge of sympathy that must appeal to any one who is not devoid of every sense of mercy. It is true that it is often difficult--and sometimes impossible--to secure the young by other means; but the manner of getting them often mars the pleasure of having them; and while Aaron was to me a charming pet and a valuable subject for study, I confess the story of his capture always touched me in a tender spot. I may here mention that the few chimpanzees that reach the civilized parts of the world are but a small percentage of the great number that are captured. Some die on their way to the coast, others die after reaching it, and scores of them die on board the ships to which they have been consigned for various ports of Europe and other countries. Death results not often from neglect or cruelty, but usually from a change of food, climate, or condition; yet the creature suffers just the same whether the cause is from design or accident. One fruitful source of death among them is pulmonary trouble of various types. One look at the portrait of Aaron will impress any one with the high mental qualities of this little captive; but to see and study them in life would convince a heretic of his superior character. In every look and gesture there was a touch of the human that no one could fail to observe. The range of facial expression surpassed that of any other animal I have ever studied. In repose his quaint face wore a look of wisdom becoming to a sage; while in play it was crowned with a grin of genuine mirth. The deep, searching look he gave to a stranger was a study for the psychologist. The serious, earnest look of inquiry when he was perplexed would have amused a stoic. All these changing moods were depicted in his mobile face with such intensity as to leave no room to doubt the activity of certain faculties of the mind to a degree far beyond that of animals in general; and his conduct in many instances showed the exercise of mental powers of a higher order than that limited agency known as instinct. In addition to these facts, his voice was of better quality and more flexible than that of any other specimen I have ever known. It was clear and smooth in uttering sounds of any pitch within its scope, while the voices of most of them are inclined to be harsh or husky, especially in sounds of high pitch.