ΟΝ NATURAL AND EXPERIMENTAL PHILOSOPHY, CONSIDERED IN IT'S PRESENT STATE OF IMPROVEMENT. DESCRIBING, IN A FAMILIAR AND EASY MANNER, THE PRINCIPAL PHENOMENA OF NATURE; AND SHEWING, THAT THEY ALL CO-OPERATE IN DISPLAYING THE GOODNESS, WISDOM, AND POWER OF GOD. By GEORGE ADAMS, Mathematical Inftrument Maker to His Majefty, and Optician to His Royal Highness the Prince of Wales. VOL. IV. LONDON: PRINTED BY R. HINDMARSH, PRINTER TO HIS ROYAL HIGHNESS THE PRINCE OF WALES, SOLD by the AUTHOR, No. 60, FLEET-STREET, |