(RECAP) 1831 104315 LONDON: PRINTED BY CHARLES WOOD, Poppin's Court, Fleet Street. PREFACE ΤΟ THE FIRST EDITION. It has been frequently objected to metaphysical speculations, that they subserve no useful purpose; and it must be allowed, that there are many inquiries in this department of intellectual exertion, which lead, in appearance, and even in reality, to no practical result. This is however a defect inherent in every pursuit, and can be brought as no specific objection against the philosophy of mind. How many substances are analyzed by |