LIST OF BOOKS. 



Le Van. Safety Valves ; Their History, Antecedents, Invention, and 

 Calculation. 69 Illustrations. I2mo. New York, 1892. $2.00 



MacCord. Treatise on the Movement of the Eccentric upon the Slide 

 Valve, and explaining the Practical Process of Laying out the Move- 

 ments, adapting the Valve for its various duties in the Steam Engine, 

 for the Use of Engineers, Draughtsmen, Machinists, and Students of 

 Valve Motion in general. 2d edition. 4to. Illustrated. New York, 

 1883. #2.50 



Peabody. Valve Gears and Steam Engines. 33 Plates. 8vo. New 

 York, 1900. $2.50 



Rose. Slide Valve Practically Explained. Embracing Simple and 

 Complete Practical Demonstrations of the Operations of each Element 

 in a Slide-Valve Movement, and illustrating the effects of variations in 

 their proportions, by examples carefully selected from the most Decent 

 and successful practice. Illustrated. I2mo. Philadelphia, 1895. $1.00 



Spangler. Valve Gears. 2d edition, revised and enlarged. 8vo. New 

 York, 1900. $2.50 



Welch. Treatise on a Practical Method of Designing Slide Valve Gear- 

 ing by Simple Geometrical Construction, based upon the principles enun- 

 ciated in Euclid's Elements, and comprising the various forms of Plain 

 Slide Valve and Expansion Gearing; together with Stephenson's, Gooch's, 

 and Allen's Link Motions, as applied either to reversing or to variable 

 expansion combinations. i2mo. London, 1875. $ I -5 



Zeuner. Treatise on Valve Gears, with Special consideration of the link 

 motions of locomotive engines. 4th edition. Translated by Prof. J. F. 

 Klein. 8vo. London, 1884. $S- 



