An Analysis of Fever. By Charles Caldwell, M. D., Professor of the Institutes of Medicine, and Clinical Practice in Transylvania University. 8vo. pp. 97.--Lexington, K. 1825. Medical and Physical Memoirs. By Charles Caldwell, M. D., Professor, &c. Containing, 1. An Introductory Address, intended as a Defence of the Medical Profession against the charge of Irreligion and Infidelity; with Thoughts on the Truth and Importance of Natural Religion. 2. A Dissertation in answer to certain Prize Questions, proposed by his Grace, the Duke of Holstein Oldenburg, respecting the "Origin, Contagion and general Philosophy of Yellow Fever, and the Practicability of that Disease prevailing in high Northern Latitudes;" with Thoughts on its Prevention and Treatment. 3. Thoughts on the Analogies of Disease. 8vo. pp. 224.--Lexington, K. 1826. Florula Cestrica: an Essay towards a Catalogue of the Phoenogamous Plants, native and naturalized, growing in the vicinity of the borough of West-Chester, in Chester County, Pennsylvania; with brief notices of their Properties and Uses, in Medicine, rural Economy and the Arts. To which is subjoined an Appendix of the useful cultivated Plants of the same District. By William Darlington, M. D. 8vo.--West-Chester, 1826. We are much gratified with the appearance of this little flora. It is really an uncommonly neat, useful, and convenient performance; and, we have no doubt, is by far the most elegant and creditable botanical work, if not the only one, published in any small town in America. To a country town, we would not think of looking for such a production; but in fact, the county of Chester has, of late years, made very considerable advances in science and literature. It has produced a public library, and perhaps others with the existence of which we are not acquainted, several botanical and mineralogical collections, a very respectable series of essays on its history, similar to Mr. Jefferson's notes on Virginia, schools, teaching the higher branches of the English mathematics, and one of those partly literary newspapers which have recently sprung up among us. The above title considerably explains the nature and extent of the work. Of its scientific accuracy, sufficient time has not yet elapsed to form an adequate judgment; but we observe that the author has had the frequent assistance of Baldwin, Collins, Steinhauer, Torrey, and Schweinitz: so that, if the maxim "noscitur a socio" be at all applicable in the present case, it is evident that he has been in the very best botanical company which our land affords.