This dress answered different ends: for in the first place it covered his nakedness, helped to keep him warm, and then it made him so frightful to the beasts that none of them cared to meddle with him or come near him. After awhile he began to make experiments with the body of the roe, anxious to find out its composition. He noticed, when he shut his eyes or held anything before him, he could see nothing at all till this obstacle was removed; and so, when he put his fingers in his ears that he could not hear till he took them out again. From which he concluded that all his senses and actions were liable to obstacles and impediments, upon the removal of which the same functions returned to their former course. Now, when he found no visible defect in the external parts of the body of the roe, and yet at the same time perceived a universal cessation of its motions, he began to imagine that the hurt from which the roe had died was hidden in the inward part of the body. Now he had observed on the bodies of wild beasts and other animals that all their members were solid, and that there were only three cavities, viz. the skull, the breast, and belly. He imagined, therefore, that the part the nature of which he wanted to find out must be in one of these cavities, and he had a strong persuasion that it was in the middlemost of them. And having by this way of reasoning assured himself that the disaffected part lay in the breast, he resolved to open the breast of the roe; and, providing himself with sharp flints and splinters of dry cane almost like knives, he made an incision between the ribs, and, cutting through the flesh, came to the _Diaphragm_. When he found this tough and not easily broken, he assured himself that such a covering must belong to that part for which he was looking out. After great efforts he succeeded in breaking through, and the first part he met was the lungs; and at last he found the heart, which he saw closed with a very strong cover and fastened with strong ligaments and guarded with a membrane. On finding the same membrane on the inside of the ribs, and the lungs in the same posture as on the other side which he had opened first, he concluded the heart to be the part he looked for. When, however, he found that the being which had dwelt there before, had left its house before it fell to ruin, and forsaken it, the whole body seemed to him an inconsiderable thing.