SH iliTlTH;' T^r<^H>^Z7 «Nl)^> [Entered at the Prist office of New York. N. v., as Second class Matter. Copyright. 1899. by Munn & Co.l A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES. NEW YORK, MAY 20, 1899. (3.00 A YEAR. [ Vol. LXXX.-No. 20. "I… … 2.—Armory Square, Including Arsenals, Offices, and the Old Shops. 3 Barrel-bedding Machine—Grooving the Stock to Receive Barrel. 4.—Semi-automatic Drilling of Magazine Holes in Receiver. SyoX*^ 5.—Clamp-milling Cylindrical Ends of Receiver. 6.—Milling Cylindrical Surfaces ot Receiver and 7.—Milling…
