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. _A Practical Treatise on Casting and Founding_, including descriptions of the modern machinery employed in the art. By N. E. Spretson, Engineer. Third edition, with 82 _plates_ drawn to scale, 412 pp., demy 8vo, cloth, 18_s_. _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. Third edition, fcap. 8vo, cloth, 1_s._ 6_d._ _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._ _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._