Tongue. Kinds of taste. Diseases of taste. Smell. Mucous membrane. Odours. Smell in animals. Diseases of smell. LECTURE VII, ON SOUND AND HEARING. Production of sound. Medium. Ear. Hearing. Pendulums. Chords. Wind instruments. Tones. Velocity of sound. Music. Echo. Deafness. LECTURE VIII, ON VISION. The eye. Figure. Light. Vision. Accommodation to different distances. Seat of vision. Erect vision. Single vision. Squinting. LECTURE IX, ON THE LAWS OF ANIMAL LIFE. Action of external objects. Excitability. Its laws. Action of light. Of Heat. Of food. Sound. Odours. LECTURE X, ON THE LAWS OF ANIMAL LIFE. General laws. Sleep. Degrees of excitability. Health. Comparison with a furnace. Oxidation. Electricity. Hydrogen. Theory of muscular contraction. LECTURE XI, OF THE NATURE AND CAUSES OF DISEASES. Brown's theory. Sthenic and asthenic diseases. Debility. Sthenic depression of spirits. Scale of excitability. Fallacy of symptoms Effects of cold. Alcohol. Sthenic diseases. LECTURE XII, ON INFLAMMATION AND ASTHENIC DISEASES. Nature of inflammation. Distention of the arteries. Cure of ophthalmias. Asthenic diseases. Cold. Intemperance. Mental exertions. Classes of diseases. Cure. Oxidation. LECTURE XIII, ON THE GOUT. Effects of the gout. Gout not hereditary. Symptoms. Causes. Affections of the stomach. Cure. Use of electricity. Diet. LECTURE XIV, ON NERVOUS COMPLAINTS. Predisposition. Classes. Sthenic kinds. Case of the author. Bad effects of wine. Asthenic kinds. Passions. Direct debility. Treatment. Torpor. Remedies. Exercise and temperance. Conclusion. AN ACCOUNT OF THE LIFE OF THE AUTHOR. DR. GARNETT was born at Casterton, near Kirkby Lonsdale, Westmoreland, on the 21st of April, 1766. During the first fifteen years of his life, he remained with his parents, and was instructed by them in the precepts of the established church of England, from which he drew that scheme of virtue, by which every action of his future life was to be governed. The only school education he received during these early years, was at Barbon, a small village near his native place, to which his father had removed the year after he was born. The school was of so little consequence, that its master changed not less than three times during the space of seven or eight years, and the whole instruction he received, was comprehended in the rudiments of the English grammar, a small portion of Latin, and a little French, together with the general principles of arithmetic. His bodily constitution was from the beginning weak and susceptible; he was unequal to joining in the boisterous amusements of his companions, while from the liveliness of his disposition he could not remain a moment idle. To these circumstances we are, perhaps, to attribute the uncommon progress he made in every branch of knowledge to which he afterwards applied himself.