Works Published by Archd. Constable fy Co. Edinburgh. geons, Member of the Cbirurgical and Wernerian Natural History Societies of Edinburgh. Svo. 6s. 6d. boards. This Tract contains so neat an exemplification of the manner of drawing :! P the mineralogical description of a country, according to the principles of the "Wer nerian Geognosy, and its plan of execution has been so generally approved of on the Continent, that the Translator was induced to render it into English, in the hope that it might thereby become better known, and more generally useful. He has used the French translation in preference to the original German, because it is stripped of some unnecessary details of localities ; but he has compared his translation with the original, and has been thus enabled to rectify some inac curacies which had crept into the French. The Map will be found an useful ap pendage to the work. 5. An ACCOUNT of the BASALTS of SAXONY; with Obser vations on the Origin of Basalt in general. By J. F. DaubuissoN, Member of the National Institute, and one of the Principal Engi neers to the Board of Mines in France. Translated, with Notes, by P. Neill, F. R. S. E. & F. L. S. Secretary to the Wernerian Na tural Flistory Society. Svo. 9s. boards. 6. MINERALOGICAL NOMENCLATURE, alphabetically arranged, with Synoptic Tables of the Chemical Analyses of Mine rals. By Thomas Allan, Esq. F. R. S. Svo. 12s. 7. ELEMENTS of AGRICULTURAL CHEMISTRY, in a Course of Lectures for the Board of Agriculture. By Sir Hum phrey Davy, LL. D. Second Edition. One Vol. Svo. With Engravings. Price ISs. boards. 8. An ACCOUNT of the SYSTEMS of HUSBANDRY adopt ed in the more IMPROVED DISTRICTS of Scotland; with soine Observations on the Improvements of which they are susceptible- Drawn up for the consideration of the Board of Agriculture, with a view of explaining how far these systems are applicable to the less cultivated parts in England and Scotland. By the Right Honour able Sir John Sinclair, Bart. Founder of the Board of Agricul ture. Third Edition. Two Vols. Svo. With numerous Plates. Price L. 1, 10s. boards. .9. GENERAL REPORT of the AGRICULTURAL STATE, and POLITICAL CIRCUMSTANCES of SCOTLAND: L>™ w, ‘ up for the Consideration of the Board of Agriculture and Internal Improvement, under the direction of the Right Honourable Sir John Sinclair, Bart. 5 Vols. Svo. and a Volume of Plates in Quarto. Price L. 1, 4s. boards.