TRANSCRIBER’S NOTE

Illustrations in this eBook have been positioned between paragraphs.

The index was not checked for proper alphabetization or correct page

references.

Obvious typographical errors and punctuation errors have been corrected

after careful comparison with other occurrences within the text and

consultation of external sources.

Some hyphens in words have been silently removed, some added, when a

predominant preference was found in the original book.

Except for those changes noted below, all misspellings in the text, and

inconsistent or archaic usage, have been retained.

Pg xix: ‘which’ replaced by ‘the’ to match the title of the section.

117: ‘Spunge’ replaced by ‘Sponge’.

The pneumatics of Hero of Alexandria · 第 110 / 110 题