NAVAL ARCHITECTURE.

_ATTWOOD._--TEXT-BOOK OF THEORETICAL NAVAL ARCHITECTURE: a Manual for Students of Science Cla.s.ses and Draughtsmen Engaged in Shipbuilders'

and Naval Architects' Drawing Offices. By EDWARD LEWIS ATTWOOD, a.s.sistant Constructor, Royal Navy; Member of the Inst.i.tution of Naval Architects. With 114 Diagrams. Crown 8vo., 7_s._ 6_d._

_WATSON._--NAVAL ARCHITECTURE: A Manual of Laying-off Iron, Steel and Composite Vessels. By THOMAS H. WATSON, Lecturer on Naval Architecture at the Durham College of Science, Newcastle-upon-Tyne. With numerous Ill.u.s.trations. Royal 8vo., 15_s._ net.

MACHINE DRAWING AND DESIGN.

_LOW._--Works by DAVID ALLAN LOW, Professor of Engineering, East London Technical College (People's Palace).

IMPROVED DRAWING SCALES. 6_d._ in case.

AN INTRODUCTION TO MACHINE DRAWING AND DESIGN. With 153 Ill.u.s.trations and Diagrams. Crown 8vo, 2_s._ 6_d._

_LOW AND BEVIS._--A MANUAL OF MACHINE DRAWING AND DESIGN. By DAVID ALLAN LOW and ALFRED WILLIAM BEVIS, M.I.Mech.E. With 700 Ill.u.s.trations. 8vo., 7_s._ 6_d._

_UNWIN._--THE ELEMENTS OF MACHINE DESIGN. By W. CAWTHORNE UNWIN, F.R.S.

Part I. General Principles, Fastenings, and Transmissive Machinery. With 304 Diagrams, etc. Fcp. 8vo., 6_s._

Part II. Chiefly on Engine Details. With 174 Woodcuts. Fcp.

8vo., 4_s._ 6_d._

WORKSHOP APPLIANCES, ETC.

_NORTHCOTT._--LATHES AND TURNING, Simple, Mechanical and Ornamental.

By W. H. NORTHCOTT. With 338 Ill.u.s.trations. 8vo., 18_s._

_Sh.e.l.lEY._--WORKSHOP APPLIANCES, including Descriptions of some of the Gauging and Measuring Instruments, Hand-cutting Tools, Lathes, Drilling, Planeing, and other Machine Tools used by Engineers. By C.

P. B. Sh.e.l.lEY, M.I.C.E. With an additional Chapter on Milling by R. R.

LISTER. With 323 Woodcuts. Fcp. 8vo., 5_s._

MINERALOGY, METALLURGY, ETC.

_BAUERMAN._--Works by HILARY BAUERMAN, F.G.S.

SYSTEMATIC MINERALOGY. With 373 Woodcuts and Diagrams. Fcp.

8vo., 6_s._

DESCRIPTIVE MINERALOGY. With 236 Woodcuts and Diagrams. Fcp.

8vo., 6_s._

_GORE._--THE ART OF ELECTRO-METALLURGY, including all known Processes of Electro-Deposition. By G. GORE, LL.D., F.R.S. With 56 Woodcuts.

Fcp. 8vo., 6_s._

_HUNTINGTON AND McMILLAN_--METALS: their Properties and Treatment. By A. K. HUNTINGTON, Professor of Metallurgy in King's College, London, and W. G. McMillan, Lecturer on Metallurgy in Mason's College, Birmingham. With 122 Ill.u.s.trations. Fcp. 8vo., 7_s._ 6_d._

_RHEAD._--METALLURGY. An Elementary Text-Book. By E. C. RHEAD, Lecturer on Metallurgy at the Munic.i.p.al Technical School, Manchester.

With 94 Ill.u.s.trations. Fcp. 8vo., 3_s._ 6_d._

_RUTLEY._--THE STUDY OF ROCKS: an Elementary Text-book of Petrology.

BY F. RUTLEY, F.G.S. With 6 Plates and 88 Woodcuts. Fcp. 8vo., 4_s._ 6_d._

ASTRONOMY, NAVIGATION, ETC.

_ABBOTT._--ELEMENTARY THEORY OF THE TIDES: the Fundamental Theorems Demonstrated without Mathematics and the Influence on the Length of the Day Discussed. By T. K. ABBOTT, B.D., Fellow and Tutor, Trinity College, Dublin. Crown 8vo., 2_s._

_BALL._--Works by Sir ROBERT S. BALL, LL.D., F.R.S.

ELEMENTS OF ASTRONOMY. With 130 Figures and Diagrams. Fcp.

8vo., 6_s._ 6_d._

A CLa.s.s-BOOK OF ASTRONOMY. With 41 Diagrams. Fcp. 8vo., 1_s._ 6_d._

_DE CAMPIGNEULLES._--OBSERVATIONS TAKEN AT DUMRAON, BEHAR, INDIA, during the Eclipse of the 22nd January, 1898, by a Party of Jesuit Fathers of the Western Bengal Mission. By the Rev. V. DE CAMPIGNEULLES, S.J. With 14 Plates. 4to., 10_s._ 6_d._ net.

_GILL._--TEXT-BOOK ON NAVIGATION AND NAUTICAL ASTRONOMY. By J. GILL, F.R.A.S., late Head Master of the Liverpool Corporation Nautical College. 8vo., 10_s._ 6_d._

_HERSCHEL._--OUTLINES OF ASTRONOMY. By Sir JOHN F. W. HERSCHEL, Bart., K.H., etc. With 9 Plates and numerous Diagrams. 8vo., 12_s._

_JORDAN._--ESSAYS IN ILl.u.s.tRATION OF THE ACTION OF ASTRAL GRAVITATION IN NATURAL PHENOMENA. By WILLIAM LEIGHTON JORDAN. With Diagrams. 8vo., 9_s._

_LAUGHTON._--AN INTRODUCTION TO THE PRACTICAL AND THEORETICAL STUDY OF NAUTICAL SURVEYING. By JOHN KNOX LAUGHTON, M.A., F.R.A.S. With 35 Diagrams. Crown 8vo., 6_s._

_LOWELL._--MARS. By PERCIVAL LOWELL, Fellow American Academy, Member Royal Asiatic Society, Great Britain and Ireland, etc. With 24 Plates.

8vo., 12_s._ 6_d._

_MARTIN._--NAVIGATION AND NAUTICAL ASTRONOMY. Compiled by Staff Commander W. R. MARTIN, R.N. Royal 8vo., 18_s._