Devices that cannot display some of the characters used for column alignment in the tables of this eBook may substitute question marks or hollow squares.
Page [59]: “95 × 1·623 = 154·185” was misprinted as “95 + 1·623 = 154·185” and has been corrected here.
The Table of Contents does not list the “[Phenomena of Heat]” chapter, which begins on page [185]; nor the [Index], which begins on page [242].
Page [95]: “adjustible” was printed that way.
Page [151]: Missing closing quotation mark added after “rapidly evaporate in space.” It may belong elsewhere.
Page [221]: Missing closing quotation mark not added for phrase beginning “it is a fine invention”.