The text of this book has been preserved as closely as practicable to its original form. However, the author used some unusual symbols, and I have taken the liberty of using Unicode characters with similar appearance (ꖌ ᔕ) as substitutes, disregarding their official meaning and aware that they might not display on all devices. An archaic symbol used by the author to indicate the mathematical ‘factorial’ function has been replaced by the modern equivalent, viz. ! Unusual placements of various sub- and superscripted symbols remain as in the original text. In this plain-text version, italic text is denoted by *asterisks*; superscripted and subscripted characters are enclosed within {curly} bra…
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