He started for Göttingen, for he wanted to begin the study of Vertebrates under the direction of Professor Keferstein. Keferstein straightway gave him a valuable lizard specimen to anatomise. Elie was not good at technique, on account of his nervous temperament; he used occasionally to lose his patience and his temper, to that point that he flung his material across the room. It happened so on this occasion; having completely wasted the valuable lizard, he conceived a still greater horror of technique and soon left Professor Keferstein for Henle, the celebrated anatomist. He worked with him for a short time at the histology of frogs' kidneys, a subject chosen by the Professor. Soon the young man realised that he was no longer capable of submitting to school discipline and resumed his independent researches. When he had to do with those problems which absorbed him he was always able to conquer his aversion for technique and to do what was required. He studied the embryology of the green-fly from the genealogical point of view, and went to Munich for the summer term in order to work with the celebrated zoologist von Siebold, a typical and venerable old German scientist. The latter was too old already to be troubled with pupils, and Elie studied his insect embryology independently; however, he visited the old man assiduously, and they had long scientific conversations. Their relations were always extremely cordial, and they even kept up a regular correspondence for many years. During his stay in Germany, music was the young man's only recreation. He did not play any instrument; his parents, discouraged by the failure of their elder children, had not had him taught, and besides, his precocious vocation would have left him no time. Yet he certainly had a natural talent for music, which he passionately loved. He could only whistle, but with that feeble means succeeded in reproducing complicated compositions. Having assiduously attended excellent concerts, he had made himself thoroughly acquainted with classical music, and Beethoven and Mozart always remained his favourite composers. His stay in Germany taught him to appreciate the great capacity for work of the scientists of that country; he admired the organisation of their laboratories, allowing every force, great or small, to be utilised and making useful collective work possible in those complicated researches which demand the collaboration of divers specialists. On the other hand, he felt a great aversion for the manners and customs of German students. Their corporations, duels, and long sittings in beer-houses were distasteful to him; he could not understand how these coarse "Burschen" could become transformed into cultivated intellectuals and respectable scientists. People to whom he expressed this wonder merely said, "Youth must have its fling...." Moreover, scientists themselves were not particularly courteous to each other. More than anywhere else personal questions held a foremost