The BELMONTYLE OIL
Prevents Rust, Tarnish, etc., on Firearms, Machinery, Tools, Cutlery, Safes, Saws, Skates, Stoves, Hardware, etc., without injury to the polish. In use over 10 years. Highest Testimonials. Samples 50 cents, three for $1.00, sent free of expressage. Send for circular.
BELMONTYLE OIL CO.,
SOLE MANUFACTURERS,
150 Front Street, New York.
The attention of Architects, Engineers, and Builders is called to the great decline in prices of wrought
STRUCTURAL IRON.
It is believed that, were owners fully aware of the small difference in cost which now exists between iron and wood, the former, in many cases, would be adopted, thereby saving insurance and avoiding all risk of interruption to business in consequence of fire. Book of detailed information furnished to Architects, Engineers, and Builders, on application.
MICROSCOPES,
TELESCOPES, FIELD GLASSES,
MAGIC LANTERNS,
ANEROID BAROMETERS,
SPECTROSCOPES,
DRAWING INSTRUMENTS,
PHILOSOPHICAL & CHEMICAL
APPARATUS.
Catalogues as follows sent on application: Part 1, Mathematical Instruments, 162 pp.; Part 2, Optical Instruments, 186 pp.; Part 3, Magic Lanterns, 112 pp.; Part 4, Philosophical and Chemical Apparatus, 160 pp. JAMES W. QUEEN & CO. 924 Chestnut St., Philadelphia, Pa.