IMPORTANT 



SCIENTIFIC WORKS. 



APPIiETOTTS' CYCLOPEDIA OF APPLIED MECHA]V> 



ICS. A Dictionary of Mechanical Engineering and tlie Meclian- 



Ical Arts. Illustrated by B,000 Engravings. Edited by Park 



Benjamin, Pli. D. 2 vols., 8vo. Sheep, $15.00; half morocco, 



$lt.OO. 



Appletons' Ctolop^dia or Applied Mechanics of 1879 is a new 



work, and not a revision of the former Dictionary of Mechanics of 18.50. 



It presents the best and latest American practice in the mechanical arts, 



end compares the same with that of other nations. It also exhibits the 



extent to which American invention and discovery have contributed to the 



world's progress during the last quarter century. The contributors include 



many of the most eminent American mechanical experts and engineers. 



Several of their contributions contain the results of original research and 



thought never before published. Their efforts have in all cases tended to 



simplify the subjects treated, to avoid technicalities, and so to render all 



that is presented easily understood by the general reader as well as by 



the mechanical student. Examples are appended to all rules, explanations 



to all tables, and in such matters as the uses of tools and management 



of machines the instructions are unusually minute and accurate. 



II. 

 Arnott, Neil* Elements of Physios ; or, Natural Philosophy. Sev- 

 enth edition. 12mo. Cloth, $3.00. 



III. 

 Bourne, John. A Catechism of the Steam-Engine, Xew revised 

 edition, with Illustrations. 12mo. Cloth, |1.76. 



IV. 



Boarne, John. Hand-Book of the Steam-Engine. Constituting » 

 Key to the " Catechism of the Steam-Engine.'' Illustrated with 

 61 Woodcuts. 12mo. Cloth, $1.15. 



