Power Railway Signalling

London: Publishers of the Railway Engineer. Good with no dust jacket; Boards rubbed, owner name on front free . endpaper, usual library stamps, waterstain at top inner joint of first . thirty pages.. 1909. Hardcover. The Railway Series of Text Books and Manuals by Railway Men for Railway Men and Others, No. 5. Green beveled boards with titles stamped in black on front boards and in gilt on spine. Many photos and illustrations of railway equipment plus several pages of illustrated advertisements at front and rear. Measures 30 x 24 cm. "This volume deals with what may be called the structure which has been raised on the foundations laid by the pioneers of the art of Power Signalling for railways, and among whom should be mentioned Cooke and Whetstone who introduced the speaking telegraph; Edward Tyer, who enabled single lines to be controlled by electricity, thus greatly increasing their carrying capacity with safety; W. R. Sykes, whose "lock-and-block" is used all over the world; Thos. A. Hall, who first convinced the railway world of the advantages of automatic signalling, and George Westinghouse who added to the benefits he had already rendered railways by demonstrating successfully the possibility of working points by other means than manual labour." (from preface) ; Ex-Library; 4to 11" - 13" tall; 342 pages .