WORKS PUBLISHED BY LOCKWOOD & CO. 9 



Strength of Cast Iron, &c. 



A PRACTICAL ESSAY on the STRENGTH of CAST IRON 

 and OTHER METALS. By the late THOMAS TREDGOLD, Mem. 

 Inst. C.E., Author of "Elementary Principles of Carpentry," &c. 

 Fifth Edition, Edited by EATON HODGKINSON, F.R.S. ; to 

 which are added EXPERIMENTAL RESEARCHES on the 

 STRENGTH and OTHER PROPERTIES of CAST IRON. 

 By the EDITOR. The whole Illustrated with 9 Engravings and 

 numerous Woodcuts. 8vo, I2J\ cloth. 



%* HODGKINSON'S EXPERIMENTAL RESEARCHES ON THE 

 STRENGTH AND OTHER PROPERTIES OF CAST IRON may be had 

 separately. With Engravings and Woodcuts. Svo, price 6s. cloth. 



The High-Pressure Steam Engine. 



THE HIGH-PRESSURE STEAM ENGINE an Exposition 

 of its Comparative Merits, and an Essay towards an Improved 

 System of Construction, adapted especially to secure Safety and 

 Economy. By Dr. ERNST ALBAN, Practical Machine Maker, 

 Plau, Mecklenberg. Translated from the German, with Notes, by 

 Dr. POLE, F.R.S., M. Inst. C.E., &c. &c. With 28 fine Plates, 

 Svo, \6s. 6d. cloth. 



"A work like this, which goes thoroughly into the examination of the high-pressure 

 engine, the boiler, and its appendages, &c., is exceedingly useful, and deserves a place 

 in every scientific library." Steam Shipping Chronicle. 



Steam Boilers. 



A TREATISE ON STEAM BOILERS : their Strength, Con- 

 struction, and Economical Working. By ROBERT WILSON, late 

 Inspector for the Manchester Steam Users' Association for the 

 Prevention of Steam Boiler Explosions, and for the Attainment of 

 Economy in the Application of Steam. I2mo, cloth boards, 328 

 pages, price 6s. 



Tables of Curves. 



TABLES OF TANGENTIAL ANGLES and MULTIPLES 

 for setting out Curves from 5 to 200 Radius. By ALEXANDER 

 BEAZELEY, M. Inst. C.E. Printed on 48 Cards, and sold in a 

 cloth box, waistcoat-pocket size, price 3^. 6d. 

 " Each table is printed on a small card, which, being placed on the theodolite, leaves 



the hands free to manipulate the instrument no small advantage as regards the rapidity 



of work. They are clearly printed, and compactly fitted into a small case for the. 



pocket an arrangement that will recommend them to all practical men." Engineer. 

 " Very handy : a man may know that all his day's work must fall on two of these 



cards, which he puts into his own card-case, and leaves the rest behind." Athetuewn. 



Laying Out Curves. 



THE FIELD PRACTICE of LAYING OUT CIRCULAR 

 CURVES for RAILROADS. By JOHN C. TRAUTWINE, C.E. 

 (Extracted from SIMMS'S Work on Levelling). Svo, $s. sewed. 



