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Currents. — Discovery of Professor Oersted. —Discovery of Ampere. — The As-
tatic Needle. — Arago.— Sir H. Davy. — M. Nobili. — Researches and Discov-
eries of Professor Henry. — Researches and Discoveries of Professor Faraday.—
Electro-magnetic Double Helix, with Clockwork. — Dr. Neef, of Frankfort-on-
the-Main, invented the Automatic Vibrator. — Faradaic Electricity. — Faradaic
Currents. — Electro-magnetism illustrated. — The Electro-magnet. — Magneto-
Electric Portable Machine illustrated. — A. great Variety of Electrodes illus-
trated.— Current-breaker for Dentists'Use 97
CHAPTER IV.
Electro-Physiology. — Electro-biology. — Cell Life. — Nervo-electrical Batteries of
Animal Life. — Researches of Matteucci and Alfred Smee. — Minute Structure
of the Nerve-fibrils illustrated. — " Hallerian Irritability." — Elementary Fibres
of Muscles illustrated.—Electro-physiological Researches and Creeds. — Ani-
mal Electricity as observed in Fishes.—The Eel and Torpedo illustrated.—
Animal Electricity as observed in Animals and in Man. — Electro-physiological
Laws as deduced by Marianini, Matteucci, Dubois-Reymond, De la Rive, Bec-
querel, Marshall Hall, and Brown-Sequard. — The minute Terminations of Mo-
tor Nerves in Muscle Fibres illustrated.—Laws and "General Principles" de-
duced from Electro-physiology. — Electro-physiological Deductions of Nobili.—
Volta's Experiments on the Frog. — The Effects of Heat and Cold on the living
Animal Nervo-electric Batteries.—Osmotic Force. — Electrolysis and Catalysis.
— Special Electro-physiology. — The Human Brain illustrated.— Effects of Elec-
tricity on the Brain. — The Vital Spot. — The Spinal Column, Brain, and Spinal
Cord, and the Sections of the Spinal Cord all illustrated. — Effects of Electricity
on the Cord. — On the Organs of Sense. — The Ear and Auditory Nerve illus-
trated.— Effects of Electricity on Seeing. — The Iris. — Hearing. — Smelling.—
Tasting. — Effects of Electricity on the Sentient Nerves. — On the Motor Nerves.
— On Mixed Nerves. — On the Sympathetic Nerves illustrated. — " Regions " of
the Human Body.—Effects of Electricity on the Intestines, Uterus, and Secret-
ing Organs. — Organs of Digestion illustrated. — Effects of Electricity on the
Heart and Blood-vessels. — On the Blood and Fibre-cells. — Effects of Electrici-
ty on the Muscles respectively % physiologically.— Muscles of the Face and
Neck illustrated. — Muscles of the Back illustrated.— Muscles on the Front of
the Body illustrated. — Muscles on the Side of the Body illustrated. — Muscle-
fibres and Fibre-cells illustrated. — Oesophagus. — Effects of the Currents. . . 156
CHAPTER V.
Methods for the Medical Employment of Electricity. —Precautions. — Methods for
using Static Electricity. — Methods for using Dynamic Electricity, or Currents.
— Methods with the Primary Current of Galvanism. — Methods with the Secon-
dary Current of Faradaism. — Laws of Muscle Contraction as deduced by Dr.
Remak. — Labile Electric Current Workings. — Stabile Electric Current Work-
ings.— Volta's "Alternatives." — The "Tetanus of Ritter."—Polar Workings.
— Intra-polar Workings. — Extra-polar Workings. — Polar Alternatives. — " Al-
ternations of Ritter." — Labile Muscle Contractions. — Rules for managing the
Seance. — Duchenne's Methods. — Faradaization. — Electro-chemical Baths.—
Magnets as a Remedy. — jEsthesiometer for Diagnosis.— Electro-muscular Test. 280