studied the causes of victory and defeat, in the general practice of the art of war. His works contain very complete views, observations delivered with great perspicuity, and able decisions, relative to all great military operations."-Revue Ency. vol. 10, p. 72. This critique is abridged from an article in the Revue, by Charles Dupin. He also gives an anecdote in the same critique which some of our readers may think interesting. Speaking of the General's work he adds ;-Rogniat makes some observations on the battle of Waterloo, which are not very flattering to Napoleon; it is probable that these observations had excited some degree of resentment in the breast of the ex-Emperor; an information, which I obtained in the following manner;-During my last visit to London, I was presented with a manuscript by a Bookseller, which had been entrusted to him by the Countess of M. who had just returned from St. Helena. Some hesitation was evinced as to its publication, in consequence of the sum asked for the manuscript, and I was desired to examine it and decide its value. It was written in a very fine hand, and corrected here and there in pencil, apparently by Napoleon himself. It consisted of critical observations upon various remarkable works; among others I noticed the Concordats of De Pradt, and the Considérations, &c. of General Rogniat. The observations on the former work appeared to me very striking; those on the latter, as might naturally be expected, were not very flattering; and their object was to demonstrate that the General had not properly estimated the public affairs which decided, during the Hundred Days, the fate of France. This manuscript, however, has never seen the light. INTRODUCTION. The French Chemists have for a considerable period, maintained the highest rank in the science of Chemistry. The "Annales de Chimie" are, among publications of a similar kind, of the greatest celebrity: LAVOISIER, Bertholletand FOURCROY rank among the most distinguished of its contributors. "BERTHOLLET" say the Edinburgh Reviewers, "appeared at an early period, as the associate of LAVOISIER, and contributed to establish the modern system, by the zeal and ability with which he engaged in its defence." CHAPTAL'S work, "La Chimie appliquée aux Arts" is in great request among Artists, and has obtained commendation from the French Institute. In Natural History, the name of BUFFON stands pre-eminent. CUVIER and Count LACEPÈDE follow next, both in interest and importance, in that popular branch of science. On the subject of Medicine, the celebrated BICHAT and CLOQUET are two of the most learned writers of |