Page:Experimental researches in electricity.djvu/53

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 * +Table of the experimental Effects common to the Electricities derived from different Sources.
 * Physiological Effects.
 * Magnetic Deflection.
 * Magnets made.
 * Spark.
 * Heating Power.
 * True Chemical Action.
 * Attraction and Repulsion.
 * Discharge by Hot Air.
 * 1. Voltaic electricity.
 * X
 * X
 * X
 * X
 * X
 * X
 * X
 * X
 * 2. Common electricity
 * X
 * X
 * X
 * X
 * X
 * X
 * X
 * X
 * 3. Magneto-electricity
 * X
 * X
 * X
 * X
 * X
 * X
 * X
 * 4. Thermo-electricity
 * X
 * X
 * 5. Animal electricity
 * X
 * X
 * X
 * X
 * }
 * 5. Animal electricity
 * X
 * X
 * X
 * X
 * }
 * 5. Animal electricity
 * X
 * X
 * X
 * X
 * }
 * X
 * }
 * }
 * }
 * }
 * }

97. Believing the point of identity to be satisfactorily established, I next endeavoured to obtain a common measure, or a known relation as to quantity, of the electricity excited by a machine, and that from a voltaic pile; for the purpose not only of confirming their identity (114), but also of demonstrating certain general principles (102, 113, etc.), and creating an extension of the means of investigating and applying the chemical powers of this wonderful and subtile agent.

98. The first point to be determined was, whether the same absolute quantity of ordinary electricity, sent through a