INTERESTING DESCRIPTIONS IN NON-TECHNICAL LANGUAGE OF WONDERFUL MACHINERY, MECHANICAL DEVICES, & MARVELLOUSLY DELICATE SCIENTIFIC INSTRUMENTS BY ARCHIBALD WILLIAMS, B.A., F.R.G.S. AUTHOR OF "THE ROMANCE OF MODERN EXPLORATION," ETC. _With Twenty-six Illustrations, Extra Crown 8vo. 5s._ "No boy will be able to resist the delights of this book, full to the brim of instructive and wonderful matter."--_British Weekly._ "This book has kept your reviewer awake when he reasonably expected to be otherwise engaged. We do not remember coming across a more fascinating volume, even to a somewhat blasé reader whose business it is to read all that comes in his way. The marvels, miracles they should be called, of the modern workshop are here exploited by Mr. Williams for the benefit of readers who have not the opportunity of seeing these wonders or the necessary mathematical knowledge to understand a scientific treatise on their working. Only the simplest language is used and every effort is made, by illustration or by analogy, to make sufficiently clear to the non-scientific reader how the particular bit of machinery works and what its work really is. Delicate instruments, calculating machines, workshop machinery, portable tools, the pedrail, motors ashore and afloat, fire engines, automatic machines, sculpturing machines--these are a few of the chapters which crowd this splendid volume."--_Educational News._ "It is difficult to make descriptions of machinery and mechanism interesting, but Mr. Williams has the enviable knack of doing so, and it is hardly possible to open this book at any page without turning up something which you feel you must read; and then you cannot stop till you come to the end of the chapter."--_Electricity._ "This book is full of interest and instruction, and is a welcome addition to Messrs. Seeley and Company's Romance Series."--_Leeds Mercury._ "A book of absorbing interest for the boy with a mechanical turn, and indeed for the general reader."--_Educational Times._ "An instructive and well-written volume."--_Hobbies._ SEELEY & CO., LTD., 38 GREAT RUSSELL STREET. WORKS BY C.J. CORNISH THE NATURALIST ON THE THAMES. With Thirty-eight Illustrations. Demy 8vo. 7s. 6d. "Will give great delight to any lover of natural history.... It is a most fascinating volume, and is illustrated in a manner worthy of the text."--_Scotsman._ "From the first page to the last there is not a single page which the reader would not wrong himself by skipping."--_Standard._ ANIMALS OF TO-DAY: Their Life and Conversation. With Illustrations from Photographs by C. REID, of Wishaw. Crown 8vo. 6s. "Quite one of the brightest books of popular natural history which have appeared in recent years is Mr. Cornish's fascinating studies of 'Animals of To-Day.'"--_Leeds Mercury._ NIGHTS WITH AN OLD GUNNER, and other Studies of Wild Life. With Sixteen Illustrations. 6s.