Essays, Receipts and Preparations; Striking Experiments, Important Queries, Recent Discoveries, and New Improvements IN THE ARTS AND SCIENCES; IN SIX PARTS.. I. LANGUAGE, GRAMMAR, | IV. THEORETIC and PRAC- TICAL CHEMISTRY. V. GEOMETRY and MATHE. MATICAL CORRESPON- DENCE. INTENDED To inspire active EMULATION, to supply rational AMUSEMENT, and to diffuse useful KNOWLEDGE. Heureux ceux qui se divertissent en s'instruisant, et qui se plaisent à cultiver leur esprit par les Sciences! FENELON. : LIVERPOOL: Price One Shilling and Sixpenie, 9-18-35 MFP WHEN the mind has been long agitated by the contemplation of great and important events it acquires an activity, an animation which ceases not with the cause that gave it birth. In such a state it is prudent, and even necessary, to supply it with something on which it may exercise its energies and render them productive of pleasure and improvement. Can any thing be better calculated to answer this purpose than the studies of the beauties of nature and of art, or than the delightful pursuits of science ? By the assistance of philosophy, of chemistry, and of the mathematics, the powers of nature are made subservient to the health and happiness of mankind. From the same sources is chiefly derived whatever is great or valuable in arts, manufactures, navigation, and commerce. From the admiration of excellence naturally arises a desire to excel : And this generous emulation, in2 well formed minds, is productive of the noblest efforts and of the most benevolent sentiments. Such a happy disposition is sometimes excited and always improved by a liberal and candid competition for preeminence; to which, all those who wish to receive or to communicate information are respectfully invited. Notwithstanding the innumerable advantages which have accrued to mankind from the many and valuable discoveries which have been made in the arts and sciences, yet, in every part, much remains to be discovered. This circumstance alone is a suffici ent |