perch. The body is to be hung by the main braces, attached to these shackles on the springs, in the same manner as other carriage-bodies are usually hung, When the body is thus hung, the action is as follows; should either of the hind or fore wheels descend into a low spot in the road, or ascend a raised surface, the boxes or sockets on the body loops will turn on their axes, and keep the whole on a proper equilibrium, so as not to be overturned. Another part of the invention is the application of a cylinder to the collarbraces of carriages, by means of which, should the centre of gravity of the body of the carriage be moved by any inequalities in the road or otherwise, either to the right or left, the equilibrium will be almost immediately restored by the mo tion of the cylinder or roller on its axis, and the consequent lapping and unlapping of the straps, for to whichever side the body is impelled, on that side will the collar brace be lengthened, and of course the opposite collar brace propor tionally shortened; one side is made to operate as a check upon the other, in order to bring the body to its true centre. The last part of the invention is the perch-bolt, which being properly placed, the fore axle-tree bed may be turned either to the right or the left, with much greater ease than if the common perchbolt were made use of, the usual friction between the beds and wheel plates being almost wholly removed from their being gradually separated by the lifting of the screw in the act of turning, LIST OF NEW PUBLICATIONS IN APRIL. As the List of New Publications, contained in the Monthly Magazine, is the ONLY COMPLETE LIST PUBLISHED, and consequently the only one that can be useful to the Public for Purposes of general Reference, it is requested that Authors and Publishers will continue to communicate Notices of their Works (Post paid), and they will always be faithfully inserted, FREE of "EXPENCE. AGRICULTURE. THE Farmer's Magazine, No XXXVII. 3s. The Utility of Agricultural Knowledge; illustrated with an Account of an Institution formed for Agricultural Pupils in Oxfordshire, 1s. 6d. ARTS AND SCIENCES. An Alphabetical List of the Names of Minerals at present most familiar, in the English, French, and German Languages, with Tables of Analyses. 5s. The Archives of Universal Science; by Alexander Walker, esq. No. I. (to be continued quarterly). 7s. 6d. Outlines of an Attempt to establisha Knowledge of Extraneous Fossils, on Scientific Principles; by William Martin, F. L. S. 8vo. 8s. The Retrospect of Philosophical, Mechanical, Chemical, and Agricultural, Papers, published by Philosophical Societies, and in the various English and Foreign Periodical Works, No. XVII. 3s. 6d. A complete System of Geography, Ancient and Modern; by James Playfair, D.D. Vol. II. 4to. 21. 2s. Metaphysical Essays, containing the Principles and Fundamental Objects of that Science, with some Considerations upon the Human Mind, &c.; By Richard Kirwan, L.L.D. F.R.S. 8vo. 12s. An Essay on the various Orders of Loga, Authentic Memoirs of Mrs. Mary Ann Clarke; by Miss Taylor. small 8vo. 6s. Memoirs of the Rev. Samuel Bourn, many years one of the Pastors of the United Congregation of the New Meeting in Birming ham; by Joshua Toulmin, D. D. 8vo. 7s. The Authentic and Impartial Life of Mrs. Mary Ann Clarke; by W. Clarke, esq. foulscap 8vo. 3s. 6d. Authentic and Interesting Memoirs of Mrs. Clarke, from her Infancy to the present Time; likewise a faithful Account of Mr. War dle's EDUCATION. Latin Synonyms, with their different Significations and Examples, taken from the best Authors; by J. B. Gardin Dumesnel, late Professor of the University of Paris; translated into English, with Additions and Corrections, by the Rev. J. M. Gosset, 8vo. 15s. The French Student's Vade Mecum; by the Rev. P. C. Le Vasseur, a native of France. To Subscribers, 5s. Non-subscribers, 7s. 6d. The Hebrew Reader, or a Practical Introduction to the Reading of the Hebrew Scriptures, for the use of Learners who were not taught Hebrew at Schools, and of Schools where it has not been introduced; by the Bishop of St. David's. 8vo. 2s. The Hebrew Reader, Part II. containing Hebrew Extracts from the Bible. 8vo. 3s. Copper-plate Copies of Hebrew Letters and Words, designed as a Companion to the above. 1s. HISTORY. A Cursory View of Prussia, from the Death of Frederic II. to the Peace of Tilsit; containing an authentic Account of the Battles of Jena, Auerstadt, Eylau, and Friedland, as also other important Events during that interesting Period. In a Series of Letters. 5s. The History of Don Francisco de Miranda's Attempt to effect a Revolution in South. America. In a Series of Letters; by James Bigg. To which are added, Sketches of the Life of Miranda, and Geographical Notices of the Caraccas. 8vo. 7s. 6d. LAW. The Law and Practice of Patents for Inventions by William Hands, gent. one of the Solicitors of the Court of Chancery. 8vo. 5s. Law Selections; containing distinct and familiar Treatises on such Divisions of the Law as are of most general Use and Importance; by James Barry Bird, esq. 2 vols. 8vo. 11. 2s. Trial of the Cause of Lord Dormer v. Robert Knight, esq. in the Court of Common Pleas, Guildhall, by a Special Jury, before the Right Hon. Lord Chief Justice Mansfield, Dec. 23, 1808. 3s. Remarks on the Judicial Proceedings of our Courts, with a few modest Hints for the Amelioration of our Judicial Procedure; by Hugh Leslie, A. M. is. 6d. A succinct View of the Law of Mortgages, with an Appendix, containing a Variety of Scientific Precedents of Mortgages; by Edward Coke Wilmot, of Oray's-inn. 65. Reports of Cases in Chancery; by T. Vesey, esq. of Lincoln's-inn. Vol. XIV. Part II. 7s. 6d. A Treatise on the Defects of the Debtor and Creditor Laws, and the Consequences of Imprisonment for Civil Debts; by W. Minchin, esq. Nightingale versus Stockdale.-Report of the Trial in an Action for a Libel, contained in a Review of the "Portraiture of Metho dism;" tried at Guildhall, before the Right Hon. Lord Ellenborough, and a Special Jury, Saturday, March 11, 1899. Taken in shorthand by Mr. Bartrum. 2s. 6d. MEDICINE AND SURGERY. The Edinburgh Medical and Surgical Journal--No. XVIII. 8vo. 3s. A short Treatise on the Virtues of Dr. Gordon's Vegetable Balsamic Pills. 1s. Suggestions for the Prevention of the Yellow Fever. To which is added, the Outline of a Plan of Military Hospitals, tending to a more successful Treatment of the Sick; by Stewart Henderson, M. D. District Staff Surgeon. Royal 8vo. 5s. A Dictionary of Practical Surgery; by Samuel Cooper, Member of the Royal College of Surgeons in London. 8vo. 15s. A Practical Materia Medica, in which the various Articles are fully described, and divided into Classes and Orders, according to their Effects. 12mo. 5s. MILITARY, Rules and Instructions for the Guidance of Officers and Non-commissioned Officers in the Field, and on other occasions, respecting the Use and Management of Guns, &c. under their charge, or to which they may be attached; particularly adapted to the Service of the East Indies; by Lieutenant-Colonel Robert Bell, Commandant of the Artillery on the Madras Establishment. 6s. Manoeuvres of Horse Artillery; by General Kosciusko; written at Paris in 1800, at the request of General W. R. Davie, then Envoy from the United States to France. Translated, with Notes, by J. Williams, Colonel Commandant of the Corps of Engineers, and the President of the United States Military Philosophical Society. With 18 plates. 65. Operations of the British Army in Spain, with broad Hints to the Commissariat and Transport Board, and Anecdotes illustrative of the real Spanish Character. 3s. A Narrative of the Circumstances attending the Retreat of the British Army, under the command of the late Lieut. Gen. Sir J. Moore, with a concise Account of the Battle of Corunna, and subsequent Embarkation of his Majesty's Troops; by Henry Milburne, Surgeon in the Spanish service. 4s. MISCELLANEOUS. MISCELLANEOUS. An Analysis of Country Dancing, wherein are displayed all the Figures ever used in Country Dances, in an easy and familiar man net to which are added, Instructions for dancing some entire new Reels; together with the complete Etiquette of the Ball-room; by T. Wilson, from the King's Theatre, Opera-house. 7s. The Treasures of Terpsichore; or, a Companion for the Ball-room: being a Collection of all the most popular English Country Dances, arranged alphabetically, with proper Figures adapted to each Dance; together with the New Dances for 1809-by T. Wilson, Dancing Master, from the King's Theatre, Opera-house. 4s. 68. A List of the Duties payable after Oct. 10, 1808, under the Management of the Stamp Commissioners in Great Britain. 4s. The Spirit of the Public Journals for 1808. 73. London Characters, or Anecdotes of Fashions and Customs of the present Century; by Sir Barnaby Sketchwell. 2 vols. royal 12mo. 16s. The Ecclesiastical and University Annual Register for 1808. 8vo. 16s. Observations on the Impolicy of encouraging Ship-building in India, with Remarks on its ruinous Consequences to the Landed, Shipping, and Manufacturing Interest of Great Britain. 8vo. 5s. Lettres et Pensées du Marechal Prince de Ligne, publiées par Madame de Stael, contenant des Anecdotes secretes sur Joseph II. Catherine II. Frederic le Grand, Rousseau, Voltaire, &c. 2 vols. 12mo. 10s. A Letter to the Young Gentlemen who write in the Edinburgh Review; by Senex. 1s. 6d. A Catalogue of Books composing the Classical Library of W. H. Lunn, Soho-square. 3s. Literary Miscellanies; by James Mason, esq. 2 vols. 8vo. 11. 5s. Thoughts and Remarks on establishing an Institution for the Support and Education of Unportioned Respectable Females. 7s. The Livery Triumphant, a Letter to the Lord Mayor on his Conduct at the late Com mon Hall; to which are subjoined, the Proseedings and Speeches on that Occasion. 1s. Green Room Gossip, or Gravity Gallipint, A Gallimaufry; by Gridiron Gabble, gent. 3s. 6d. Claims of Mr. Wardle to the Thanks of the Country, for his Parliamentary Conduct, in his Charges against the Duke of York. 2s. A serious Admonition to his Royal Highness the Duke of York, on the evil Tendency of Corrupt Communication. 1s. 6d. Freemason's Lectures, contain every Question and Answer as worke in Lodges. 10s. 6d. our An Answer to the Challenge given by W. Blair, esq. A. M. and published in Dr. Rees's Cyclopædia, respecting a Cypher of his own Invention, which is absolutely inscrutable without the Key; by M. Gage. 10s. 6d. Political, Commercial, and Statistical Sketches of the Spanish Empire, in both Indies. 4s. 6d. The New Annual Register, for 1808. 8vo. 11. The Spirit of English Wit. Small 8vo. 5s. Mr. Thelwall's Plan and Terms of Instruction to Domestic and Private Pupils. 5. Vindiciae Satirice; or, a Vindication of the Principles of the Satirist, and the Conduct of its Proprietors; by G. Manners, esq. 2s. 6d. Observations on the Conduct of Mrs. Clarke; by a Lady. 2s. 6d. NOVELS AND ROMANCES. The Cottage of Merlin Vale; a History founded on Facts. 2 vols. 12mo. 10s. The English Brothers, or Anecdotes of the Howard Family. 4 vols. 12mo. 11. 1s. Levity and Sorrow, a German Story; by M. A. Bianchi. 2 vols. 12mo. 10s. Laughton Priory; by Gabrielli. 4 vols. 12mo. 11. The Irish Guardian, or Errors of Eccentricity; by Mrs. Mackenzie. 3 vols. 12me. 15s. Susan. 2 vols. 12mo. 8s. Hours of Affluence and Days of Indigence; by Miss Byron. 4 vols. 12mo. 1l. POETRY. Royal Love Lyrics, from Royal Love Letters, with Notes and Illustrations. 2s. 6d. Rudigar, the Dane; a Legendary Tale; by Eaglesfield Smith, esq. 2s. The Iliad of Homer, translated into English blank verse; by the Rev. James Morrice, A. M. rector of Bethanger, Kent; and vicar of Flower, Northamptonshire. 2 vols. 8vo. 11. 1s. Sonnets of the Eighteenth Century, and other small Poems. Foolsc. 8vo. 5s. The Thespiad ; a Poetical Critique on the Principal Theatrical Performers. 2s. 6d. Horæ Ionicæ, descriptive of the Ionian Islands, and the adjacent Coast of Greece; by Waller Rodwell Wright, esq. some time his Majesty's Consul General for the Republic of the Seven Islands, 8vo. 4s. Gertrude of Wyoming, or the Pennsylvanian Cottage, and other Poems; by Thomas Campbell. 4to. 11. 5s. The Four Slaves of Cythera; a Romance, in ten Cantos; by the Rev. Robert Bland. 8vo. 9s. The Corrected Speeches of Mr. Wardle, the Chancellor of the Exchequer, Mr. Whitbread, Mr. Adam, Sir Francis Burdett, Mr. Croker, Sir Samuel Romilly, Mr. Wilberforce, Lord Folkstone, Mr. York, Mr. Canning, &c, in the House of Commons, on Mr. Wardle's Charges against his Royal Highness the Duke of York, 8vo, Memoirs of the King's Supremacy and of the Rise, Progress, and Results of the Supremacy of the Pope, in different Ages and Nations, as far as relates to civil Affairs. By Thomas Brooke Clarke, D.D. 8vo. 10s. 6d. The Orders in Council, and the American Embargo, beneficial to the Political and Commercial Interests of Great Britain. By Lord Sheffield. 8vo. 2s. A Correct Report of the Speech delivered by Sir Francis Burdett, bart. in the House of Commons, on Monday the 13th of March, 1809, on the conduct of the Duke of York. 1s, A View of the Political Situation of the Province of Upper Canada, in which her phy sical Capacity is stated; the Means of diminishing her Burdens, increasing her Value, and securing her Connection with Great Britain, are fully considered. By John Mills Jack son. 3s. THE A Letter from a Country Clergyman to his Parishioners, in which are considered a few of the Arguments and Practices of some of the Modern Dissenters. By the Rev. John Nance. 1s. 6d. Hewlett's Bible. Part IV. 7s. (large paper, 9s.) Paganism and Christianity Compared. In a Course of Lectures to the King's Scholars, at Westminster, in the years 1806, 7 and 8. By John Ireland, D. D. Prebendary and Subdean of Westminster. 8vo. 10s. 6d. The Star in the East, a Sermon delivered in the Parish Church of St. James, Bristol, February 26, 1809, for the benefit of the Society for Missions to Africa, and the East. By the Rev. Claudius Buchanan, L.L.D. 1s. 6d. A Dissertation on the Logos of St. John, comprehending the Substance of Sermons, preached before the University of Oxford. By Richard Laurence, L.L.D. rector of Mersham, Kent. 3s. A Series of Discourses, on the Principles of Religious Beliefs, as connected with Human Happiness and Improvement. By the Rev. R. Morehead, A. M. junior, minister of the Episcopal Church, Cowgate, Edinburgh, 8vo. 9s. A Discourse, preached in the Episcopal Church, Cowgate, Edinburgh, February 9, 1809; being the Day appointed for a General Fast. By Archibald Allison, L.L.B. Prebendary of Sarum. 1s. A Portraiture of Methodism, being an impartial View of the Rise, Progress, and Manners of the Wesleyan Methodists. By Joseph Nightingale. 8vo. 10s. 6d. VARIETIES, LITERARY AND PHILOSOPHICAL. HE late interesting and eventfulCampaigns in Spain and Portugal,are about to be illustrated in a series of Letters, by Dr. ADAM NEALE, physician to the forces, and F.L.S. They will contain a full account of the operations of the British armies under Sir Arthur Wellesley and Sir John Moore, from the day preceding the battle of Vimiera, to the battle and embarkation at Corunna; with an interesting detail of the memorable retreat from Sahagun. The author, who sketches beautifully, will enrich the work with twelve engravings, by Heath, from drawings made on the spot, illustrative of the campaign. Mr. De Luc, is about to publish an Elementary Treatise on Geology, containing an examination of some modern geological systems, and particularly of the Huttonian Theory of the Earth. This work is translated from the French ma nuscript nuscript of M. de Luc, by the Rev. HENRY DELA FITE, M.A. of Trinity college, Oxford, and will form an octavo volume. The coloured Engravings, in imitation of the drawings by the Rev. W. BRADFORD, of the Costume, Character, and Country in Spain and Portugal, made during the campaign, 1808 and 1309, are in great forwardness. Mr. GALT, who has for some time been engaged in researches among the national records, is preparing a work, illustrative of the Life of Cardinal Wol. sey, and those corruptions in the church which led to the Reformation, and the general change which at that period took place in the political system of Europe. Mr. GREIG, of Chelsea, has announced a work on Astronomy, on a new plan, whereby that science is rendered simple and easy. The chief Constellations are to be exhibited (in. a manner similar to geography) on separate maps, with their etymology, boundary, the stars to the 4th mag. introduced; and the declination, right ascension, culminating, &c. of the principal star in each specified, with remarks, &c. Mr. THELWALL is preparing for publication, an Essay on the Causes and Probable Consequences of the Decline of Popular Talent; addressed to the serious consideration of those classes of the community, the individuals of which may be expected to aspire to the distinctions of the senate and the bar, &c. The work will contain a full discussion of the principal desiderata, in the existing systems of liberal education, and critical delineations of the characters, talents, eloquence, and oratorical endowments of Messrs. Burke, Pitt, Fox, &c. Mr. THELWALL has also in the press, a formal announcement (intended to be circulated through all the colleges, public institutions, and literary societies of the United Kingdom) of the Plan of his Institution for the Cure of Impediments, Cultivation of Oratory, and Preparation of Youth, for the higher departments of active life; together with proposals for the further extension of the advantages of his system of instruction. This institution has now been established in Bed ford Place, Russell Square, for upwards of three years; and during that time, it is asserted, that no person with any species of impediment, defect, or foreign or provincial accent, has been under instruction, even for the shortest period, witheut receiving essential benefit; nor has any one persevered for any reasonable time, in the plans of the institution, without attaining an effectual and radical cure. Dr. REID will commence a summer Course of Lectures, on the theory and practice of medicine, at his house, No. 6, Grenville-street, Brunswick-square, on Monday the 22d of May, at nine o'clock in the morning. Dr. CLOUGH, physician-manmidwife to the St. Marylebone General Dispensary, &c. will on Monday the 8th of May, at teu in the morning, commence his Course of Lectures on Puerperal Anatomy, Physiology, and Pathology, at his house, No. 68, Berner's-street. The Rev. JOSEPH WILKINSON, -is about to publish by subscription, Select Views in Cumberland, Westmoreland, and part of Scotiand, exhibiting the most picturesque situations in these counties. Dr. SERNY is about to publish a Treatise on local inflammation, more particularly applicable to discases of the eye, wherein an improvement in the treatment of those discases is recommended, founded on numerous cases under the author's 'own care. Mr. YORICK WILSON, veterinary sur geon of Lemington, near Warwick, has in the press an improved Practical Trea tise on Farriery, entitled, the Gentleman's Veterinary Monitor. It is the result of his own experience in the various diseases of horses, and prescribes humane and rational methods of cure, without the assistance of a farrier. It likewise treats on breeding, training, purchasing, riding, management on a journey, in the stable, &c. Mr. WESTON has translated one of the Imperial Poems of Kien Lung, mentioned by Voltaire, in his Epistle to that Em peror, and found on a China Vase, in Mr. W's Collection. An engraving of the Vase will be prefixed to the work. The Fifty-two Lectures on the Church Catechism, by the Rev. Sir ADAM GORDON, will be published this month in two volumes. Mr. SHELDRAKE has invented an ar ticle of female dress, which he calls the Invisible Grecian Zone, for preserving the shapes of children or young persons who are approaching to maturity. Dr. CAREY, has in the press, and will speedily publish an Essay, and familiar introduction to English Prosody and Ver. sification, on a novel but simple plan; besides descriptions and analyses of the different species of English verse, with preparatory |