Original printed spelling and grammar is generally retained. Footnotes were renumbered and relocated to the ends of chapters. Notes to tables were left in their original locations. Some mathematical and chemical formulas and equations were modified in format or rearranged. Original small caps type Looks like This. The transcriber created the cover image, and hereby releases it to the public domain.
This book uses many uncommon Unicode characters, and careful selection of the ebook reader software and font used to view it is necessary. Some of the uncommon characters not already mentioned are: U+2296 ⊖, U+2295 ⊕, U+221E ∞, U+221B ∛, U+2212 −, U+21C4 ⇄, U+2192 →, U+21C5 ⇅, U+2572 ╲, and U+2571 ╱, etc. A monospaced font will improve the appearance of the data tables. However, the Thin Space U+2009 is used in most of the chemical and mathematical equations, and an exact monospaced font will not display Thin Space correctly. Adobe's "Source Code Pro" is an unusual "monospace font" that does display Thin Space and the data tables correctly.
The archaic form of scientific notation exemplified by "0.0413", is herein simplified either to decimal form—"0.000013"in this example—or to modern scientific E notation, "1.3E−5". In this, "E" means "times ten raised to the power of". Furthermore, E notation has also been substituted herein for many numbers originally printed like this: "a × 10b ".
The name "van't Hoff" was changed to "van 't Hoff" throughout; likewise "Van't" to "Van 't". The hyphen is used inconsistently throughout the book, in words such as "hydrogen-ion" versus "hydrogen ion" or "non-ionized" versus "nonionizied". These have been retained. The word "difficulty" was sometimes employed as an adverb; herein it is converted to "difficultly" in this usage.
Page 45: Changed "permangante" to "permanganate".
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)".
Page 252: Substituted "ε−" for a symbol that might be described as "circled epsilon".
Page 283: In the equation showing the oxidation of zinc by cupric ion, the upward arrow originally shown beside the symbol for copper metal is changed to downward arrow.
Page 310: The reference for "mobility" of "Hydroxide-ion" was changed from "156" to "56".