Engines, and the Formula for calcu-, 3. Elasticity and Elongation of cation of the foregoing Formula. subjected to a Crushing or 4. Animal Strength as a Mechanical Agent. 4. On the Strength of Materials I. Table of Logarithmic Differences. II. Table of Logarithms of Numbers, from 1 to 100. III Table of Logarithms of Numbers, from 100 to 10,000. IV. Table of Logarithmic Sines, Tangents, Secants, &c. V. Table of Useful Factors, extending to several places of Decimals. VI. Table of various Useful Numbers, with their Logarithms. VIL A Table of the Diameters, Areas, and Circumferences of Circles and also the sides of Equal Squares. VIII. Table of the Relations of the Arc, Abscissa, Ordinate and Subnormal, in the Catenary. IX. Tables of the Lengths and Vibrations of Pendulums. X. Table of Specific Gravities. XI. Table of Weight of Materials frequently employed in Construction. XII. Principles of Chronometers. XIII. Select Mechanical Expedients. XIV. Observations on the Effect of Old London Bridge on the Tides, &c. In 18mo., in boards, comprising 390 pages, price 58. A SYNOPSIS OF PRACTICAL PHILOSOPHY, alphabetically arranged, containing a great variety of Theorems, Formalt, and Tables, from the most accurate and recent authorities in various branches of Mathematics and Natural Philosophy: with Tables of Logarithms. By the Rev. JOHN CARR, M.A., late Fellow of Trinity College, Cambridge. John Weale's Catalogue of his Publications of Works on Architecture, Civil, Mechanical, Military, and Naval Engineering, gratis; if by post, ld. HINTS ΤΟ YOUNG ARCHITECTS: COMPRISING ADVICE TO THOSE WHO, WHILE YET AT SCHOOL ARE DESTINED SUCH AS, HAVING PASSED THEIR PUPILAGE, ARE ABOUT TO TRAVEL TOGETHER WITH A MODEL SPECIFICATION: VOLVING A GREAT VARIETY OF INSTRUCTIVE AND SUGGESTIVE MATTER AND AS THE RIGHTFUL JUDGES OF A CONTRACTOR'S DUTY. By GEORGE WIGHTWICK, ARCHITECT. CONTENTS : Preliminary Hints to Young Archi- Model Specification: tects on the Knowledge of Stone-cutting. In One Large Volume Octavo, Eleven Hundred Pages, with numeros A GENERAL TEXT BOOK, FOR THE CONSTANT USE AND REFERENCE OF ARCHITECTS, ENGINEERS, SURVEYORS, SOLICITORS, AUCTIONEERS, LAND AGENTS, AND STEWARDS, IN ALL THEIR SEVERAL AND VARIED PROFESSIONAL OCCUPATIONS; AND FOR THE ASSISTANCE AND GUIDANCE OF COUNTRY GENTLEMEN AND OTHERS ENGAGED IN THE TRANSFER, MANAGEMENT, OR IMPROVEMENT OF LANDED PROPERTY: CONTAINING THEOREMS, FORMULÆ, RULES, AND TABLES @ GEOMETRY, MENSURATION, AND TRIGONOMETRY; LAND MEASURING, SURVEYING, AND LEVELLING; RAILWAY AND HYDRAULIC ENGINEERING; TIMEER MEASUSING; THE VALUATION OF ARTIFICERS' WORK, ESTATES, LEASEHOLDS, LIFEHOLDA, ANNUITIES, TILLAGES, FARMING STOCK, AND TENANT RIGHT; THE ASSESINE: OF PARISHES, RAILWAYS, GAS AND WATER WORKS; THE LAW OF DILAPIDA TIONS AND NUISANCES, APPRAISEMENTS AND AUCTIONS, LANDLORD AND TENANT, AGREEMENTS AND LEASES. TOGETHER WITH EXAMPLES OF VILLAS AND COUNTRY HOUSES. BY EDWARD RYDE, Civil Engineer and Land Surveyor, Author of several Professional Works. TO WHICH ARE ADDED SEVERAL CHAPTERS ON AGRICULTURE AND LANDED PROPERTY, BY PROFESSOR DONALDSON, CONTENTS. CHAPTER I.-ARITHMETIC. 1. Notation-2. Proof of the First Four Rules-3. Vulgar Fractions-4. Decimals-5. Duodecimals-6. Powers and Roots-7. Properties of Numbers-8. Logarithms and Mathematical Tables. II-PLANE AND SOLID GEOMETRY. 1. Definitions-2. Of Angles and Right Lines, and their Rectangles-3. Of Triangles-4. Of Quadrilaterals and Polygons-5. Of the Circle, and Inscribed and Circumscribing Figures-6. Of Planes and Solids-7. Practical Geometry. III.-MENSURATION. 1. Comparison of English and French Weights and Measures-2. Mensuration of Superficies-3. Mensuration of Solids. IV. TRIGONOMETRY. 1. Definitions and Trigonometrical Formulæ— 2. General Propositions-3. Solution of the Cases of Plane Triangles. V.-CONIC SECTIONS. VI.-LAND MEASURING. Including Table of Decimals of an AcreTable of Land Measure, by dimensions taken in yards. VII.-LAND SURVEYING. 1. Parish and Estate Surveying-2. Trigonometrical Surveying-3. Traverse Surveying-4. Field Instruments, the Prismatic Compass; the Box Sextant; the Theodolite. VIII.-LEVELLING. Levelling Instruments, the Spirit Level; the Y Level; Troughton's Level; Mr. Gravatt's Level; Levelling StavesExamples in Levelling. IX.-PLOTTING. Embracing the Circular Protractor-The T Square and Semicircular Protractor-Plotting Sections. X-COMPUTATION OF AREAS. The Pediometer-The Computing Scale-Computing Tables. XI.—COPYING MAPS. Including a description of the Pentagraph. XII-RAILWAY SURVEYING. 1. Exploration and Trial Levels; Standing Orders.-2. Proceedings subsequent to the Passing of the Act; Tables for Setting out Curves; Tables for Setting out Slopes; Tables of Relative Gradients; Specification of Works to be executed in the construction of a Railway; Form of Tender. XIII-COLONIAL SURVEYING. XIV.-HYDRAULICS IN CONNECTION WITH DRAINAGE, SEWERAGE, AND WATER SUPPLY.-With Synopsis of Ryde's Hydraulic TablesSpecifications, Iron Pipes and Castings; Stone-Ware Drain Pipes; Pipe Laying; Reservoir. XV.-TIMBER MEASURING. Including Timber Tables, Solid Measure, Unequal Sided Timber; Superficial Measure. XVI-ARTIFICERS' WORK. 1. Bricklayers' and Excavators'-2. Slaters'-3. Carpenters' and Joiners'-4. Sawyers'-5. Stonemasons'6. Plasterers'-7. Ironmongers'-8. Painters'-9. Glaziers'-10. Paper Hangers'. XVII-VALUATION OF ESTATES. With Tables for the Purchasing of Freehold, Copyhold, or Leasehold Estates, Annuities, and Advowsons, and for Renewing Leases for Terms of Years certain and for Lives. XVIII-VALUATION OF TILLAGES AND TENANT RIGHT. With Tables for Measuring and Valuing Hay Ricks. CONTENTS (continued) :— XIX-VALUATION OF PARISE ES. XXII. THE LAW RELATING TO APPRAISERS AND AUCTIONEERS. 1 XXIV.-TABLES. Of Natural Sines and Cosines-For Reducing XXV.—STAMP LAWS.-Stamp Duties-Customs' Duties EXAMPLES OF VILLAS AND COUNTRY HOUSES. ON LANDED PROPERTY, BY PROFESSOR DONALDSON. I.-Landlord and Tenant-their Position and Connections. III.-Cultivation of Land, and Rotation of Crops. IV.-Buildings necessary on Cultivated Lands-Dwelling Houses, V.-Laying-out Farms, Roads, Fences, and Gates. VII.-Meadows and Embankments, Beds of Rivers, Water Courses, VIII.-Land Draining, Open and Covered,-Plan, Execution, and IX.-Minerals-Working and Value. X.-Expenses of an Estate-Regulations of Disbursements—and XI.-Valuation of Landed Property; of the Soil, of Houses, of Woods, XIV. Fixed days of Audit-Half-Yearly Payments of Rents-Form |