* * * * * WATCH SWINDLES.--Humbug Music Boxes. Bogus Money. Four columns of "Ventilations" in the "STAR SPANGLED BANNER." * * * * * BUERK'S WATCHMAN'S TIME DETECTOR.--Important for all large Corporation and Manufacturing concerns--capable of controlling with the utmost accuracy the motion of a watchman or patrolman, as the same reaches different stations of his beat, Send for a Circular. J.E.BUEBK, P.O.Box 1,057, Boston, Mass. N.B.--This detector is covered by two U. S. patents. Parties using or selling these instruments without authority from me will be dealt with according to law. * * * * * LATHE CHUCKS--HORTON'S PATENT--from 4 to 36 inches. Also for car wheels. Address E. HORTON & SON, Windsor Locks, Conn. * * * * * CATALOGUES 10 CENTS EACH, SENT BY MAIL. _MATHEMATICAL INSTRUMENTS_, 112 pages. _OPTICAL INSTRUMENTS_, 72 pages. _MAGIC LANTERNS and STEREOPTICONS_, 100pp. _PHILOSOPHICAL INSTRUMENTS_, 84 pages. JAMES W. QUEEN & CO., 924 Chestnut st..Philadelphia Pa * * * * * COTTON AND WOOL SHODDY PICKERS Of the most approved English pattern, built by RICHABD KITSON Lowell, Mass. * * * * * Excelsior Lubricator For Cylinders of Engines. The most durable and best oil cup, manufactured by B. E. LEHMAN, Lehigh Valley Brass Works. Bethlehem, Pa. Send for desc'ive circular * * * * * MODELS, PATTERNS, EXPERIMENTAL, and other machinery. Models for the Patent Office built to order by HOLSKE MACHINE CO., Nos. 528, 530 and 532 Water st., near Jefferson. Refer to SCIENTIFIC AMERICAN office. 14 tf * * * * * MACHINERY FOR SALE-- Consisting of steam engines, boilers, machinists' tools, planers from two to five feet wide, lathes from 1½ to 7-ft. swing, and one boring, turning, and slotting mill, of 8-ft. swing, trip hammer, blacksmith's tools, fire proof safes, portable mills, fan blowers, water wheels, pulleys, shafting, belting, platform scales, etc., etc.; all at prices that will insure a rapid sale. Send for schedule. Engines, water wheels, and machinery made to order. GEOBGE T. McLAUTHLIN & CO., 120 Fulton st., Boston, Mass. * * * * * M. N. FORNEY, Mechanical Engineer, 64 B'dway (Room 48), N.Y. Designs, Plans, Estimates and Working Drawings of Machinery. etc., promptly and accurately made. Instruction given in Mechanical Drawing to a limited number of pupils. * * * * * NEW SCROLL SAW (Moyer's Pat.), with--out Post or Gate; uniform Tension; no jarring or noise; executes better and faster than any other. Send for a circular. HAMPSON & COPELAND, 42 Cortlandt st., New York. * * * * * PERFECTLY RELIABLE.--Established 1863. Satisfaction Guaranteed. "Star Spangled Banner." 75 cents a year.