When italics were used in the original book, the corresponding text has been surrounded by _underscores_ Mixed fractions have been displayed with a hyphen between whole number and fraction for clarity. Superscripted characters are preceded by ^ and when more than one character is superscripted, they are surrounded by {}. AUTHOR OF ‘THE MECHANISM OF THE HEAVENS’ ‘PHYSICAL GEOGRAPHY’ ‘CONNECTION OF THE PHYSICAL SCIENCES’ ETC.…
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