‘Calculated to aid and encourage the most useful set of handicraftsmen we have amongst us.’—_Daily Chronicle._

=THE PRINCIPLES OF PATTERN MAKING.= Written specially for Apprentices, and for Students in Technical Schools. By J. HORNER, M.I.M.E. Illustrated with 101 Engravings, and containing a Glossary of the Common Terms employed in Pattern Making and Moulding. 3_s._ 6_d._

Gas and Petroleum Engines — Part 67

‘The book is well illustrated, and for its size will be found one of the best of its kind.’—_Industries._

Gas and Petroleum Engines — Part 67

=PRACTICAL IRONFOUNDING.= By J. HORNER, M.I.M.E., ‘a Foreman Pattern Maker.’ Illustrated with over 100 Engravings. Second Edition. 4_s._

Gas and Petroleum Engines — Part 67

‘Every pupil and apprentice would find it, we think, an assistance to obtaining a thorough knowledge of his work. The book, however, is not intended merely for the student, but contains much useful information for practical men.’—_Industries._

=METAL TURNING.= By J. HORNER, M.I.M.E. With 81 Illustrations. 4_s._

CONTENTS:—The Lathe—Tools and Tool Angles—Chucks—Chucking—General Remarks on Turning—Hand Turning—Slide Rest Turning—Boring—Screw Cutting, etc.

‘An exceedingly useful publication to have at hand.’—_Machinery._

=ELECTRICAL EXPERIMENTS.= With 144 Illustrations. Second Edition. 2_s._ 6_d._

‘This is an excellent book for boys.’—_Electrical Review._

=INDUCTION COILS.= A Practical Manual for Amateur Coil-makers. _With a New Chapter on Coils for Radiography._ With 101 Illustrations. 3_s._

‘In Mr. Bonney’s useful book every part of the coil is described minutely in detail, and the methods and materials required in insulating and winding the wire are fully considered.’—_Electrical Review._

=THE ELECTRO-PLATER’S HANDBOOK.= A Practical Manual for Amateurs and Young Students in Electro-Metallurgy. With Full Index and 61 Illustrations. Second Edition, Revised and Enlarged, with an Appendix on ELECTROTYPING. 3_s._

‘An Amateur could not wish for a better exposition of the elements of the subject.’—_Electrical Review._

=LENS WORK FOR AMATEURS.= With numerous Illustrations. Small crown 8vo. 3_s._

‘The book is a trustworthy guide to the manufacturer of lenses, suitable alike for the amateur and the young workman.’—_Nature._

=MODERN OPTICAL INSTRUMENTS.= By the same Author. 2_s._ 6_d._