2d hand Lathes, Drills, Planers, Hand Tools for Iron Work, new Woodworth Planing Machines, Resawing, Tenoning, Moulding Machines, Scroll Saws, Portable Steam Engine. Jos. R. Blossom, Ass'e, Matteawan, N. Y. * * * * * THE GEORGE PLACE MACHINERY AGENCY Machinery of Every Description. 121 Chambers and 103 Reade Streets, New York. * * * * * 60 Chromo and Perfumed Cards [no 3 alike], Name in Gold and Jet, 10c. CLINTON BROS., Clintonville, Ct. * * * * * ROOF PAINTING. For $5, by Post Office Order or express, I will send the recipe for making Langhorne's English Gum Coating Paint and other mineral paints, with full instructions for roof and sidewall painting. This paint is used by the U. S. Government. Address M. LANGHORNE, 708 E Street, Washington, D. C. * * * * * FOR SALE.--LETTERS PATENT OF Wilhide's Celebrated Noiseless Self-setting Rat and Mouse Traps. Thoroughly introduced. Traps sold by all dealers. Address Owners and Manufacturers, J. T. WILHIDE & BRO., York Road, Carroll Co., Md. * * * * * IMPORTANT FOR ALL CORPORATIONS AND MANF'G CONCERNS.--BUERK'S WATCHMAN'S TIME DETECTOR, capable of accurately controlling the motion of a watchman or patrolman at the different stations of his beat. Send for circular. J. E. BUERK, P. O. BOX 979. BOSTON, MASS N. B.--The suit against Imhaeuser & Co., of New York, was decided in my favor, June 10, 1874. A fine was assessed against them Nov. 11, 1876, for selling contrary to the order of the court. Persons buying or using clocks infringing on my patent will be dealt with according to law. * * * * * SPARE THE CROTON AND SAVE THE COST. DRIVEN OR TUBE WELLS furnished to large consumers of Croton and Ridgewood Water. WM. D. ANDREWS & BRO., 414 Water St., N. Y., who control the patent for Green's American Driven Well. * * * * * A New and Valuable Work for the Practical Mechanic and Engineer. APPLETONS' CYCLOPAEDIA OF APPLIED MECHANICS. A DICTIONARY OF MECHANICAL ENGINEERING AND THE MECHANICAL ARTS. Illustrated by 5,000 Engravings. _Edited by PARK BENJAMIN, Ph.D._ This valuable work is now being published in semi-monthly parts, at fifty cents each. Active agents wanted. For terms and territory address GEO. W. DAVIS, care of D. APPLETON & CO., New York. * * * * * CAVEATS, COPYRIGHTS, TRADE MARKS, ETC. Messrs. Munn & Co., in connection with the publication of the SCIENTIFIC AMERICAN, continue to examine Improvements, and to act as Solicitors of Patents for Inventors.