The encyclopmdic form, so convenient in facilitating reference to scientific
treatises on comprehensive subjects, and which LOU DON has so admirably adapted to rural and MACCULLOCH to commer- cial pursuits, is now to be applied to mining and manufacturing. Dr. URE, who bus acquired a high reputation by the practical application of chemistry to the useful arts, proves to be well versed in mechanical science also; and he has commenced the publica- tion of a Dictionary of Arts, Manufactures, and Mines, in which the principles and practice of every branch of industry where mechanism and chemistry are employed, are to be clearly and fully expounded. The text is illustrated by an abundance of wood- engravings, diagrams being essential to the explanation of me- chanical contrivances. Among the subjects treated of in the first of the ten parts, are Acetic Acid, Aleehol, Alloy, Artesian Wells, Assay, Bandanna, Baths, Beer : the mention of these will give an idea of the comprehensive variety of the information. Dr. URE makes this announcement of a new work on chemistry the me- dium of advertising publicly that he gives advice in the disorders of machinery and defects of human inventions, as well as his terms for chemical analysis : in short, he practises as consulting engineer and mechanician, as well as chemist.
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