Embellished with an emblematical Frontispiece, exquisitely engraved by Thompson, from a design of Thurston's,

THE

PRINCIPLES OF THE SCIENCES;

or, The Elements of Human Knowledge connected with Religion and Morality. In a Series of Familiar Letters, from a Father to his Son.

Treating respectively of

Theology,Geography,Phonics,
Mythology,History, Chemistry,
Astronomy,Chronology,Hydrostatics,
Meteorology,Logic,Pneumatics,
Geology,Ontology,Electricity,
Mineralogy,Mathematics,Galvanism,
Physiology,Mechanics,Literature,
Anatomy,Magnetism,Music,
Zoölogy,Navigation,Painting,
Botany, Optics, Poetry;

With a variety of concomitant and minor subjects.

By Cecil Hartley, M.A.

Author of "Principles of Punctuation," and "of Elocution."