Its Production, Uses, and Applications COMPRISING THE PHYSICAL PROPERTIES OF AIR FROM A VACUUM AS A MOTIVE POWER In the Operation of Stationary and Portable Machinery, in Mining, Air Tools, Appliances in which Compressed Air is a Most Con- venient and Economical Transmitter of Power for Air has been Applied. WITH FORTY AIR TABLES AND FIVE HUNDRED AND FORTY-FIVE ILLUSTRATIONS By GARDNER D. HISCOX, M.E. Author of "Mechanical Movements, Powers, Devices and Appliances," 'Gas, Gasoline and FOURTH EDITION NEW YORK NORMAN W. HENLEY & CO. 132 NASSAU STREET |