Page [81]: Removed the unmatched right parenthesis from "the difference in ionization between potassium hydroxide and ammonium hydroxide).".

Page [104]: The table notes were reordered and renumbered to match the sequence of note anchors in the table. The anchor in the table title originally linked to a footnote instead of a table note; this footnote was converted to a table note (the first one).

Page [106]: The label for the sixth note to the table "The Ionization Constants of Bases" was changed from "3" to "F".

Page [117]: The chemical reaction schema, originally comprising two balanced equations and two unbalanced equations using vertical arrows has been rearranged into four balanced equations, with horizontal arrows. Such rearrangements have been silently performed elsewhere.

Page [117]: The printed symbol that might be described as "normal leftward arrow over rightward dark arrow (or heavy arrow)" has been represented herein with a more readily available character "⥂"—the Unicode character with hexadecimal number 2942, designated as "U+2942", rightward arrow over short leftward arrow. The same character is used herein for the printed symbol which might be described as "downward dark arrow left beside upward short arrow right"—the equations having been rearranged into a horizontal format—and also for "rightward dark arrow over leftward arrow". A different character U+2943 "⥃" represents "normal rightward arrow over heavy leftward arrow". [Rtn to Footnote #459.]

Page [125]: In the reaction of arsenious oxide with hydrogen sulphide, changed "H3S" to "H2S".

Page [157] "Mendelejeff" changed to "Mendeléeff".

Page [197]: Changed "[AlO3−] = y" to "[AlO33−] = y".

Page [226], etc.: Both forms "Bodlaender" and "Bodländer" are retained.

Page [246]: Changed "saponifying esters (p. 801)" to "saponifying esters (p. 81)".