The principles of science

Transcriber’s notes :
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 An archaic symbol used by the author to indicate the mathematical ‘factorial’ function has been replaced by the modern equivalent, viz.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 some sub- and superscripted symbols remain as in the original text.
>Footnotes have been renumbered consecutively and relocated to the end of the book. A missing footnote marker has been inserted on p.751 after tracking down the original document. A missing negative symbol has been added to an exponent in a formula on p.327.
There is a misleading calculation on p.194 and the table that follows, regarding progressive powers of two: ((2 2 ) 2 ) 2 is equivalent to (16) 2 which equals 256 not 65,356 as stated, but 2 16 does equal 65,356.
New original cover art included with this eBook is granted to the public domain.
THE PRINCIPLES OF SCIENCE.
THE LOGICAL MACHINE.
W. STANLEY JEVONS,
LL.D. (EDINB.), M.A. (LOND.), F.R.S.
London:
MACMILLAN AND CO.
1883.