Chapter XVII: Part 1: Geometry on Paper--Part 2. Solidity, Weight, and

Pressure--Part 3. Trigonometry, Vision, and Surveying Instruments.

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_A Practical Treatise on Casting and Founding_, including descriptions of the modern machinery employed in the art. By N. E. SPRETSON, Engineer. With 82 _plates_ drawn to scale, 412 pp. Demy 8vo, cloth, 18_s._

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_A Practical Treatise on Coal Mining._ By GEORGE G. ANDRÉ, F.G.S., ASSOC. Inst. C.E., Member of the Society of Engineers. With 82 _lithographic plates_. 2 vols., royal 4to, cloth, 3_l._ 12_s._

CONTENTS:

I. Practical Geology--II. Coal, its Mode of Occurrence,
Composition, and Varieties--III. Searching for Coal--IV.
Shaft-sinking--V. Driving of Levels, or Narrow Work--VI. Systems
of Working--VII. Getting the Coal--VIII. Haulage--IX. Winding--X.
Drainage--XI. Ventilation--XII. Incidental Operations--XIII.
Surface Work--XIV. Management and Accounts--XV. Characteristics
of the Coal Fields of Great Britain and America.

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_The Electric Transmission of Power, its Present Position and Advantages._ By PAGET HIGGS, LL.D., D.Sc., Telford Prizeman, and Associate Member of the Institution of Civil Engineers. _With numerous illustrations._ Crown 8vo, cloth, 3_s._

CONTENTS:

Dynamo-electric Machines--The Gramme Machine--The Brush
Machine--The Wallace-Farmer and Siemens Machines--Efficiency of
Dynamo-electric Machines--Practicability of the Transmission of
Power by Electricity--Efficiency of Coupled Machines--Comparative
Efficiency of Various Machines--Other Theoretical
Considerations--Conclusions.

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_The Clerk of Works_: a Vade-Mecum for all engaged in the Superintendence of Building Operations. By G. G. HOSKINS, F.R.I.B.A. Fcap. 8vo, cloth, 1_s._ 6_d._

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_Coffee Planting in Southern India and Ceylon._ By E. C. P. HULL. Crown 8vo, cloth, 9_s._

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_Spons’ Information for Colonial Engineers._ Edited by J. T. HURST. Demy 8vo, sewed.

No. 1, Ceylon. By ABRAHAM DEANE, C.E. 2_s._ 6_d._

CONTENTS:

Introductory Remarks--Natural Productions--Architecture and
Engineering--Topography, Trade, and Natural History--Principal
Stations--Weights and Measures, etc., etc.

No. 2. Southern Africa, including the Cape Colony, Natal, and the Dutch Republics. By HENRY HALL, F.R.G.S., F.R.C.I. With Map. 3_s._ 6_d._

CONTENTS:

General Description of South Africa--Physical Geography with
reference to Engineering Operations--Notes on Labour and
Material in Cape Colony--Geological Notes on Rock Formation
in South Africa--Engineering Instruments for Use in South
Africa--Principal Public Works in Cape Colony: Railways, Mountain
Roads and Passes, Harbour Works, Bridges, Gas Works, Irrigation
and Water Supply, Lighthouses, Drainage and Sanitary Engineering,
Public Buildings, Mines--Table of Woods in South Africa--Animals
used for Draught Purposes--Statistical Notes--Table of
Distances--Rates of Carriage, etc.

No. 3. India. By F. C. DANVERS, Assoc. Inst. C.E. With Map. 4_s._ 6_d._

CONTENTS:

Physical Geography of India--Building
Materials--Roads--Railways--Bridges--Irrigation--River
Works--Harbours--Lighthouse Buildings--Native Labour--The
Principal Trees of India--Money--Weights and Measures--Glossary
of Indian Terms, etc.

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_Tropical Agriculture_; or, the Culture, Preparation, Commerce, and Consumption of the Principal Products of the Vegetable Kingdom, as furnishing Food, Clothing, Medicine, etc., and in their relation to the Arts and Manufactures; forming a practical treatise and Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, etc., of the various Substances obtained from Trees and Plants entering into the Husbandry of Tropical and Sub-Tropical Regions. By P. L. SIMMONDS. Second edition, revised and improved, 515 pages, 8vo, cloth, 1_l._ 1_s._

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_Steel, its History, Manufacture, and Uses._ By J. S. JEANS, Secretary of the Iron and Steel Institute. 860 pages and 24 _plates_. 8vo, cloth, 36_s._