I. ' <)1 ]i(jolis PUHLISIIED BY 



OPTI AL ILLUSIONS. 



The Ghost as produced in the Spectre Dram-:, 

 popularly illmtr.iting the marvellous .>;> 

 illusions, obtained by tho ap 1 th- 



DirksianPli u-ia, by Ilonry 



v\ u Svo, cloth, 2s. 



OENAMENT.- 



Tho book of Ornaments of every style, applicable 

 to Art and Industry, for the use of Lithographers , 

 Engravers, Silversmiths, Decorators, and other 

 Art- Workmen, by Jos. Scheidel, 5 numbers at 

 Is. 6d. each. 



OENAMENT. 



Gleanings from Ornamental Art of every style, 

 drawn from examples in the British, South 

 Kensington, Indian, Crystal Palace, and other 

 Museums, the Exhibitions of 1851 and 1862, and 

 the best English and Foreign Works, in a series 

 of 100 plates containing rnanj^ hundred examples, 

 by E. Newberry, 4to, cloth, 30s. 



PEEPETUAL MOTION. 



Perpetuum Mobile, or Search for Self-motive 

 power during the 17th, 18th, and 19th centuries, 

 illustrated from various authentic sources in 

 papers, essays, letters, paragraphs, and numerous 

 patent specifications, with an introductory essay 

 by Henry Dircks, C.E., with numerous engravings 

 of machines, crown 8vo, cloth, 10s. 6d. 



"A curious and interesting work. Mr. Dircks' chief purpose was 

 to collect togc'tluT till the materials requisite to form a record of what 

 has been dom>, or attempted, rather in this curious branch of quasi 

 science, and most instructive in one seme it is. Mr. Dircks' volume- 

 N well worth looking into; it co!ii;;i;is a, vast deal of entertaining 

 matter.'' Builder, 



RAILWAYS. ~ 



Bailway Practice, a collection of working plan? 

 and practical details of construction in the Public 

 Works of the most celebrated Engineers, com- 

 prising Eoads, Tramroads and Eailways, Bridges, 

 Aqueducts, Viaducts, Wharfs, Warehouses, Eoofs 

 and Sheds, Canals, Locks, Sluices, and the various 



