www.e-rara.ch An experimental inquiry concerning the relative power of, and useful effect produced by, the Cornish and Boulton and Watt pumping engines, and cylindrical and waggon-head boilers Wicksteed, Thomas London, 1841 ETH-Bibliothek Zürich Shelf Mark: Rar 1695 Persistent Link: http://dx.doi.org/10.3931/e-rara-14221 Works recently published on the various branches of architecture, civil and military engineering, mechanics, naval architecture, &c., &c. By John Weale, [...]. www.e-rara.ch Die Plattform e-rara.ch macht die in Schweizer Bibliotheken vorhandenen Drucke online verfügbar. Das Spektrum reicht von Büchern über Karten bis zu illustrierten Materialien – von den Anfängen des Buchdrucks bis ins 20. Jahrhundert. e-rara.ch provides online access to rare books available in Swiss libraries. 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BY JOHN WEALE , ARCHITECTURAL LIBRARY, 59, HIGH HOLBORN, Where an Extensive Stock of all the approved Publications relating to the above Subjects, and to the Fine Arts , whether Foreign or Domestic, is constantly on Sale. torture* i . In 4to., very neat in lialf-morocco, with about 130 Illustrations on wood and copper, Price 15s. ; some copies with illuminated title-page, &c., and with India proofs, Price £ 1. 4s. THE TRUE PRINCIPLES OF POINTED OR CHRISTIAN ARCHITECTURE: SET FORTH IN TWO LECTURES DELIVERED AT ST. MARIE’S, OSCOTT, By A. WELBY PUGIN, Architect , and Professor of Antiquities in that College . The following important facts are fully explained in this Work : 1. That all the Ornaments of pure Pointed Edifices were merely introduced as decorations to the essential constructions of those Buildings. 2. That the construction of Pointed Architecture was varied to accord with the properties of the various materials employed, shown by ancient examples of Stone, Timber, and Metal construction. 3. That no features were introduced in the ancient Pointed Edifices, which were not essential either for convenience or propriety . 4. That Pointed Architecture is most consistent, as it decorates the useful portions of Buildings, instead of concealing or disguising them. 5. That true principles of architectural proportion are only found in Pointed Edifices. 6. That the defects of modern Architecture are principally owing to the departure from ancient consistent principles. It will be readily perceived from these heads, that the present Work furnishes the means for testing architectural excellence, by setting forth the consistent principles of ancient design. Hitherto archi¬ tectural criticism has been little more than mere capricious opinion, and few persons could give a satisfactory reason for their approval or dislike of a Building. The laws of Architectural Composition are based on equally sound principles as those of Harmony or Grammar, and that they can be violated with greater impunity is simply owing to their being less understood. It is humbly hoped that this Work, which is the result of long experience and patient research, will supply in a great measure the want of sound information that exists on this important subject ; and by explaining the consistent principles of Pointed Architecture, which are inseparable from pure taste, furnish a standard by which the excellence of the ancient Buildings may be duly appreciated, and the extravagances and inconsistencies of modern styles readily discerned. Among the Illustrations will be found several interesting examples of ancient Roofs, Ceilings, Fittings of Rooms, Railings, Hinges, and Ornamental Iron-work, Silver Shrines and Reliquaries, Jambs, Base¬ ments, Water-tables, and details of Stone-work, Jointing of Masonry, and Perspective Views of Ecclesiastical, Collegiate, and Domestic Buildings ; all drawn from Original Sketches by the Author. 2 WORKS PUBLISHED BY JOHN WEALE . 2. WINDSOR CASTLE : Illustrated by the late Sir JEFFRY WYATVILLE, R. A., F. R. S., &c. DEDICATED , BY EXPRESS PERMISSION , ®a fljpv ildnst ©rattHUjg fHajes'tn tfjc iSlucnt. In obedience to a “ Command” from His late Majesty King William the Fourth, in 1834, Sir Jeffry Wyatville began this Work, with the determination of rendering it fully worthy the subject. On her accession, Her Majesty the Queen condescended, by an autograph, to express her “ entire approval ” of Sir Jeffry’s proceeding with the Work ; which was on the eve of completion at the time of his death in February, 1840, and is now published agreeably to the promise of his Son-in-law and his Executors. The following shows the nature and extent of the Work, and the terms of publication. It consists of Forty Plates, all large but three, and several of great magnitude, forming two volumes, (or in one, at the option of the purchaser,) Grand Eagle. The first contains Elevations and Perspective Views of the several Fronts of the Castle, some of them of considerable size, with the requisite Plans. The second contains Elevations of the various Parts of the Castle, on a larger scale. The Plates are accompaniedby a full Description of them. Also an Historical Essay, so far as relates to the structure of the Castle, from its foundation to the present time, by Ambrose Poynter , Esq. ; illustrated by other Plates and by Wood-Cuts, chiefly showing the former state of the Castle. The Work was published in three Parts ; the first issued in May, 1840, the second in October, and the concluding Part in June, 1841. Proofs on India Paper, .€ !. 14s. 6<Z. each Part. Prints, £ 2. 12s. 6d. each Part. For a work of this magnitude, produced at a great cost, the terms of publication are extremely moderate ; but Sir Jeffry was desirous only, first, of obeying the commands of his Sovereign, and then of fulfilling his own inclinations, by producing for the gratification of the British Public a magnificent Illustration of this truly Royal Palace, to the new construction and improvement of which so many years of his active life had been devoted. It is edited (at the request of Sir J. Wyatville’s Son-in-law and of his Executors) by Henry Ashton , Esq., Architect, who, on Sir Jeffry’s resignation, was appointed to succeed him in superintending the works in progress at the Castle. LIST OF THE PLATES . VOL. I. 11. The Winchester Tower. 12. Henry the Third’s Tower. 1. The Victoria Tower, on the Title-page. 13. King Edward the Third’s Tower. 2. North-East View of the Wykeham or Winchester 14. The Round Tower. Tower. Side of George the Fourth’s Gateway. General Plan. 15. The Inner 3. 16. The Sovereign’s Entrance to the Private Apartments. 4. The South Front. 1/. The Kitchen Court Gateway. 5. The East Front. 18. The State Entrance Tower. 6. The North Side. 19. Queen Elizabeth’^ Gallery and Henry the Seventh’s 7. The West Front of the Upper Ward. Building. 8. The South Side of the Upper Ward. 20. King John’s Tower. 9. Section from North to South through the Upper Ward. 21. St. George’s Gate and Edward the Third’s Tower. 10. North Side of the Upper Ward. 11. Plan of the Ground Story of the Upper Ward. PLATES WITH TIIE LETTER-PRESS. 12. Plan of the Principal Story of the Upper Ward. Norden’s View, at the head of the Essay. 13. View of the South and East Sides. Wren’s plan for improving the Castle, in 14. North-East View. Sir Christopher View. the Essay . 15. North-West The South, East, and North Fronts, as in the year 1824. 16. South-West View. Do. 17. A View of the Upper Ward, (looking East.) The West Front, and the South and North Sides of the 18. A View of the Upper Ward, (looking West.) Court of the Upper Ward, as in the year 1824. Do. 19. View of the Riding House and Stables. View in the Riding House, at the head of Description of VOL. II . Plates, Vol. I . 1. North-West View of the Winchester Tower, Title- wood -cuts interspersed with the letter -press . page. The Queen’s Arms, on the Dedication. 2. King George the Fourth’s Gateway. Norman Fragments. 3. The Victoria Tower. Doorway in the Devil Tower. 4. The East Front of the Victoria Tower. Part of the Dean’s Cloister, and Capitals of Columns. 5. The Clarence Tower. A Piscina and a Corbel with a head, set. Edward the Third. 6. The Chester Tower.