Author’s Note
I beg to thank the following gentlemen and firms for the help they have given me in connection with the letterpress and illustrations of “How It Works”—
Messrs. F.J.C. Pole and M.G. Tweedie (for revision of MS.); W. Lineham; J.F. Kendall; E. Edser; A.D. Helps; J. Limb; The Edison Bell Phonograph Co.; Messrs. Holmes and Co.; The Pelton Wheel Co.; Messrs. Babcock and Wilcox; Messrs. Siebe, Gorman, and Co.; Messrs. Negretti and Zambra; Messrs. Chubb; The Yale Lock Co.; The Micrometer Engineering Co.; Messrs. Marshall and Sons; The Maignen Filter Co.; Messrs. Broadwood and Co.
How It Works
Dealing in Simple Language with Steam, Electricity,
Light, Heat, Sound, Hydraulics, Optics, etc.
and with their applications to Apparatus
in Common Use
By
ARCHIBALD WILLIAMS
Author of “The Romance of Modern Invention,”
“The Romance of Mining,” etc., etc.
THOMAS NELSON AND SONS
London, Edinburgh, Dublin, and New York