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