原文 (英语)

Transcriber’s Note: This version of the text cannot represent certain typographical effects. Italics are delimited with the ‘_’ character as _italic_. Superscripted characters are prefix with ‘^’. Footnotes have been moved to follow the paragraphs in which they are referenced. Minor errors, attributable to the printer, have been corrected. Please see the transcriber’s note at the end of this text for details regarding the handling of any textual issues encountered during its preparation.