Full Instructions, with Eight Working Drawings, Half Size. Construction easy and Inexpensive. These drawings are from an actual working Phonograph; they show the sizes, forms, and arrangement of all the parts. The explanations are so plain and practical as to enable any intelligent person to construct and put a Phonograph in successful operation in a very short time. Contained in SCIENTIFIC AMERICAN SUPPLEMENT NO. =133.= Price 10 cents. To be had at this office and of all newsdealers. ---------------------------------------------------------------------- [Illustration: SCHLENKERS AUTOMATIC REVOLVING BOLT CUTTER DIAMOND SELF CLAMP PAPER CUTTER HOWARD'S SAFETY ELEVATORS HOWARD'S PARALLEL VISE HOWARD IRON WORKS BUFFALO N. Y. ] ---------------------------------------------------------------------- =_PERFECT_= =NEWSPAPER FILE= The Koch Patent File, for preserving newspapers, magazines, and pamphlets, has been recently improved and price reduced. Subscribers to the SCIENTIFIC AMERICAN and SCIENTIFIC AMERICAN SUPPLEMENT can be supplied for the low price of $1.50 by mail, or $1.25 at the office of this paper. Heavy board sides; inscription "SCIENTIFIC AMERICAN," in gilt. Necessary for every one who wishes to preserve the paper. Address =MUNN & CO., Publishers SCIENTIFIC AMERICAN.= ---------------------------------------------------------------------- THE TANITE CO., STROUDSBURG, PA. =EMERY WHEELS AND GRINDERS.= GEO. PLACE, 121 Chambers St., New York Agent. ---------------------------------------------------------------------- [Illustration: ROCK DRILLING MACHINES AND AIR COMPRESSORS. MANUFACTURED BY BURLEIGH ROCK DRILL CO. SEND FOR PAMPHLET. · FITCHBURG MASS. ] ---------------------------------------------------------------------- =STEAM PUMPS.= HENRY R. WORTHINGTON, 239 Broadway, N. Y. 83 Water St., Boston. THE WORTHINGTON DUPLEX PUMPING ENGINES FOR WATER WORKS--Compound, Condensing or Non-Condensing. Used in over 100 Water-Works Stations. STEAM PUMPS--Duplex and Single Cylinder. WATER METERS. OIL METERS.