Page 445, in table of factors for computing proteids under Maize Proteids, read “16.06 and 6.22” instead of “15.64 and 6.39” respectively.

Page 451, sixth line from bottom, read “occur” instead of “occurs.”

Page 464, twelfth line from bottom, dele “food.”

Page 499, ninth line from bottom, read “Babcock.”

Page 543, sixteenth line, read “6.06 and 6.22” for “6.31 and 6.39” respectively.

Pages 555-556, read “amylolytic” for “amylytic.”

Page 555, fifth and seventeenth lines from bottom, insert after “into dextrin, maltose.”

Page 572, second equation, read “tʹₙ₂” instead of “tʹₙ₁.”

Page 573, 3rd line from bottom, read “stirring” for “storing.”

Page 574, 6th line from bottom, read “Θ₄” for “O_4.”