ical and Scientific QUEEN & CO +9 Instrument Works, will SEND e Picture frame, E. Olde’ — experiments performed withit. A most valuable series print Pillow sham hoider, A. N. He: of articles, giving in complete form the particulars of 69 Fifth Ave., New York. 1010 Chestnut St., Phila. Pipe. See… … T. HIS great Roll holder tension device, W. H. Lewis. 631,402 Buy Telephones Rotary drier, L. Grill...... 0... cee eee eee work has now ARMSTRONG'S PIPE THREADING Rotary motor with conjugate helices, A. Blot been on the mar- Rudder, F. Baldt............... ccc cece seeee eee eee ket for nearly 1…
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