‘Messrs. Whittaker’s valuable series of practical manuals.’ _Electrical Review._ By W. PERREN MAYCOCK, M.I.E.E. =FIRST BOOK OF ELECTRICITY AND MAGNETISM.= Second Edition, Revised and Enlarged, with 107 Illustrations. 2_s._ 6_d._ ‘Students who purchase a copy, and carefully study it, will obtain an excellent groundwork of the science.’—_Electrical Review._ By THE SAME AUTHOR. =ELECTRIC LIGHTING AND POWER DISTRIBUTION=—An Elementary Manual of. For Students preparing for the Preliminary and Ordinary Grade Examination of the City and Guilds of London Institute, and general readers. Third Edition, Revised and Enlarged, in two volumes. Vol. I., 430 pp., with 231 Illustrations. Crown 8vo. 6_s._ ‘The work will no doubt become a standard text-book for schools and classes on this subject; as such, it has few equals.’—_Electrical Review._ =THE ALTERNATING CURRENT CIRCUIT.= An Introductory and Non-Mathematical Book for Young Engineers and Students. By W. PERREN MAYCOCK, M.I.E.E. With 46 Illustrations. Small crown 8vo, cloth. 2_s._ 6_d._ =FITTING, THE PRINCIPLES OF.= For Engineer Students. By J. HORNER, M.I.M.E. Illustrated with about 250 Engravings, and containing an Appendix of Useful Shop Notes and Memoranda. 5_s._ ‘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._ ‘The book is well illustrated, and for its size will be found one of the best of its kind.’—_Industries._ =PRACTICAL IRONFOUNDING.= By J. HORNER, M.I.M.E., ‘a Foreman Pattern Maker.’ Illustrated with over 100 Engravings. Second Edition. 4_s._ ‘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._ By G. E. BONNEY. =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._