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CONTENTS.
CHAPTER I.
Natural Electricity. — Its Characters.—Sources of Electricity. — Thales the first
Discoverer. — Electricity at Rest. — In Motion. — Nature of Electricity. — Frank-
lin's Theory. — Symmer's. — De la Rive's. — Thermo-electricity. — Thermo-cube.
— Static Electricity. —Dynamic Electricity. —Laws of Electricity. — Sparks and
Currents.— Atmospheric Electricity. — Franklin's great Experiment. — Sparks
from the Clouds. — The Clouds. — Thunder Storms. — Fogs. — Relation of Elec-
tricity to the Air and the Earth. — Aurora Borealis. — Meteorology. — Storms. —
Storm Tables. — Atmospheric Hydrometer. — Difference oetween Electricity
and Magnetism.—Weather Prognosis. — Lightning. — Safety from Lightning.
— Effects on the Human Organism. — Effects of Atmospheric Electricity on the
Human Organism. — As regards Births and Deaths. — Electric Changes the
Cause of Epidemic Diseases. — Researches of Sir James Murray 15
CHAPTER II.
Early History of the Medical Uses of Electricity. — One Hundred Years ago.—
Pliny. — Discovery of the " Leyden Vial." — First Trial of Shocks. — Treatise by
Dr. Matiduit in 1778. —Electropathy advocated in 1802.— Electric Bath. —Med-
icines placed in the Prime Conductor. — The prevailing Superstition of that Age.
— History of the Discovery of Galvanism. — Early Medical Uses of Galvanic
Electricity. — Animal Electricity. — Galvani's Frog.—His Nervo-electric The-
ory. — Convulsions produced in a dead Frog. — Professor Volta's Views of the
Phenomenon.—Views of Alexander von Humboldt in 1799.—Volta discovers
the Pile. — Sir H. Davy's Researches. —Discussion between Galvani and Volta.
— Dr. Aldini's Experiments. — Nobili's Researches. — Vallio's Researches.—
History of Electro-physiological and Electro-therapeutical Researches.—Views
of Ritter. — Researches of Marianini and Nobili.—Researches of Dubois-Rey-
mond.—Researches of Matteucci and Becquerel 65
CHAPTER III.
Electrical Instruments and Apparatus for Medical Purposes. — Three Classes of
Instruments.—Electricity from Friction. — Electricity from Chemical Action.—
Electricity from Induction. — Electrical Machine. — Leyden Jar.—Dischargers,
Insulators, &c. — Galvanic Electricity and the Apparatus. — Volta's Pile.—
Cruikshank's and other Batteries illustrated. — Galvanometer. — Galvanoscopic
Frog. — Static Electricity as it relates to Medicine. — Electric Induction.—Di-
rection of the Current.— Quantity and Intensity. — Electric Heat. — Induction