TO THE PUBLIC. We have now closed our second volume, and trust that our readers are convinced no efforts on our part have been wanting to make this work what it is chiefly designed to be, a Journal of the present state of the Arts, and the collateral Sciences. On the solicitation of many respectable friends and subscribers, we have determined for the future, instead of publishing our number every two months, to publish it monthly, in order that, by these means, the earliest information may be communicated to the public, and to make it, as we are assured it must be, more acceptable to our readers. The thirteenth number, therefore, of the LONDON JOURNAL OF ARTS AND SCIENCES, and the first of the Third Volume, will appear on the First of January next, and the subsequent numbers will be published regularly on the First day of each succeeding month, making two volumes annually. 315000 In consequence of this arrangement, it has been necessary to make a difference in the quantity and price. Instead of three shillings and sixpence, heretofore charged for each number, the future price will be two shillings and sixpence ; there being, of course, a proper portion of letterpress and plates. This alteration, we doubt not, will be approved. Of our own efforts, after the publication of two volumes, it is scarcely necessary to speak. But in the new arrangement, we pledge ourselves to equal exertions with the past; and, indeed, we venture to presume, that every number of the LONDON JOURNAL OF ARTS from its commencement, has evinced a progressive improvement: and that progression it will be still our chief aim to foster and promote. For the patronage which this work has already received, we beg leave to return our best thanks; and confidently look forward to an extension of that support to which we hope and believe we are honourably and fairly entitled. November 29th, 1821. I. Phillips's Improved Capstan. II. Torey's Plough Drill, Birkinshaw's Railway, Mallet's Lock, and Perkins's Water Wheel. III. Perkins's Pumps, and Rider's Rotatory Engine. V. Pearson's Rudder, Jamieson's Marine Thermometer Case, VI. Lambert's Weaving Machinery, Millichap's Axletrees, VII. Bowman's Power Loom. VIII. White's Spinning Machinery. IX. Arnold's Chronometer Balance, Varley's Lens, Improved X. Spots on the Sun's Disc. XI. Scott's Mechanical Agents, Brunel's Copying Press, and XII. Wilson's Weaving Apparatus, Watt's Printing Press, Aldersey's Mechanical Agent, and Southwell's Pianoforte. XIII. Vaughan's Blowing Machine, Jeffrie's and Halley's do, and Adams on the Solar Spots. XIV. Manby's Steam Apparatus, and Carter's Rotatory Steam Engine. XV. Simpson's Snuffers, Machell's Lamp, Deb aufer's Perdifume, Coates's Hydrostatic Balance, and Vallee on Vision. XVI. Chapman's Mode of Transferring Lading, and Section of Plymouth Breakwater. XVII. Phillips's Propelling Apparatus, and Reedhead and Par. rey's do. XVIII. Stein's Steam Engine, and Pennock's do. XIX. Main's Wheeled Carriages, and Higman's Harness. XX. Furnace for the Consumption of Smoke, Shenton's Safety Valve, Murray's Shower Bath, and Goldfinch's Horse |