Page 73, read “Kosmann” in 10th line of paragraph 72 for “Kormann.”

Page 158, reference number 72, read “1889” instead of “1888.”

CORRECTIONS FOR VOL. III.

Page 11, name of Figure 4 read “Dreef” instead of “Dree.”

Page 40, fifth and seventh lines, read “Courtonne” instead of “Courtoune.”

Page 59, eighth line from bottom, insert “original” before “optical.”

Page 60, second line, read “d” instead of “l” before “fructose.”

Page 68, legend of Figure 29, read “areometers” instead of “aereometers.”

Page 146, sixth line from bottom, insert “cyanid” after “potassium.”

Page 159, instead of headings for table as given, substitute those on page 160.