event Plaster of Paris from Setting Quickly. The Measurement of
Liquids with Spoons.

XIV. SIMPLICITY OF GREAT INVENTIONS AND OF NATURE'S MANIFESTATION
Page 152

Invention Precedes Science. Simplicity in Inventions.
The Telegraph. Telephone. Transmitter. Phonograph.
Wireless Telegraphy. Printing Telegraph. Electric Motor.
Explosions. Vibrations in Nature. Qualities of
Sound. The Photographer's Plate. Quadruplex Telegraphy.
Electric Harmony. Odors. Odophone. A Bouquet
of Vibrations. Taste. Color.

XV. WORKSHOP RECIPES AND FORMULAS Page 160

Adhesives for Various Uses. Belt Glue. Cements. Transparent Cement. U.
S. Government Gum. To Make Different Alloys. Bell-metal. Brass.
Bronzes. Boiler Compounds. Celluloid. Clay Mixture for Forges. Modeling
Clay. Fluids for Cleaning Clothes, Furniture, etc. Disinfectants.
Deodorants. Emery for Lapping Purposes. Explosives. Fulminates. Files,
and How to Keep Clean. Renewing Files. Fire-proof Materials or
Substances. Floor Dressings. Stains. Foot Powders. Frost Bites. Glass.
To Frost. How to Distinguish. Iron and Steel. To Soften Castings.
Lacquers. For Aluminum and Brass. Copper. Lubricants. Paper.
Photography. Plasters. Plating, Coloring Metals. Polishes. Putty. Rust
Preventives. Solders. Soldering Fluxes. Steel Tempering. Varnishes.
Sealing Wax.

XVI. HANDY TABLES Page 178

Table of Weights for Round and Square Steel. Table of Weight of Flat
Steel Bars. Avoirdupois Weight. Troy Weight. Apothecaries' Weight.
Linear Measure. Long Measure. Square Measure. Solid or Cubic Measure.
Dry Measure. Liquid Measure. Paper Measure. Table of Temperatures.
Strength of Various Metals. Freezing Mixtures. Ignition Temperatures.
Power and Heat Equivalents.

XVII. INVENTIONS AND PATENTS, AND INFORMATION ABOUT THE
RIGHTS AND DUTIES OF INVENTORS AND WORKMEN,
Page 188

The Machinist's Opportunities. What is an Inventor? Idea Not Invention.
What an Invention Must Have. Obligation of the Model Builder. Paying
for Developing Devices. Time for Filing an Application. Selling an
Unpatented Invention. Joint Inventors. Joint Owners Not Partners.
Partnerships in Patents. Form of Protection Issued by the Government.
Life of a Patent. Interference Proceedings. Concurrent Applic