ROCK DRILLING MACHINES
AND
AIR COMPRESSORS

MANUFACTURED BY Burleigh Rock Drill Co.
SEND FOR PAMPHLET. FITCHBURG MASS.


Niagara
Steam Pump Works. ESTABLISHED 1826. CHARLES B. HARDICK,
No. 23 Adams Street,
BROOKLYN, N.Y.

NON-COMBUSTIBLE STEAM BOILER AND PIPE

COVERING

WITH "AIR SPACE" IMPROVEMENT. Saves 10 to 20 per cent. CHALMERS SPENCE CO., Foot E. 9th St. N.Y.; 1202 N. 2d St., St. Louis, Mo.