I have given an account of the conclusions I had come to concerning them in my early years. As a child I had not been content with the results promised by the modern professors of natural science. With a confusion of ideas only to be accounted for by my extreme youth and my want of a guide on such matters, I had retrod the steps of knowledge along the paths of time and exchanged the discoveries of recent inquirers for the dreams of forgotten alchemists. Besides, I had a contempt for the uses of modern natural philosophy. It was very different when the masters of the science sought immortality and power; such views, although futile, were grand; but now the scene was changed. The ambition of the inquirer seemed to limit itself to the annihilation of those visions on which my interest in science was chiefly founded. I was required to exchange chimeras of boundless grandeur for realities of little worth. Such were my reflections during the first two or three days of my residence at Ingolstadt, which were chiefly spent in becoming acquainted with the localities and the principal residents in my new abode. But as the ensuing week commenced, I thought of the information which M. Krempe had given me concerning the lectures. And although I could not consent to go and hear that little conceited fellow deliver sentences out of a pulpit, I recollected what he had said of M. Waldman, whom I had never seen, as he had hitherto been out of town. Partly from curiosity and partly from idleness, I went into the lecturing room, which M. Waldman entered shortly after. This professor was very unlike his colleague. He appeared about fifty years of age, but with an aspect expressive of the greatest benevolence; a few grey hairs covered his temples, but those at the back of his head were nearly black. His person was short but remarkably erect and his voice the sweetest I had ever heard. He began his lecture by a recapitulation of the history of chemistry and the various improvement