[AC] Under some circumstances, nitric acid is formed, which is equally beneficial to vegetable growth.
[AD] See the glossary at the end of the book.
[AE] Working Farmer, vol. 1, p. 55.
[AF] It is not necessary that this and the foregoing table should be learned by the scholar, but they will be found valuable for reference by the farmer.
CHAPTER VIII.
MINERAL MANURES.
How many kinds of action have inorganic manures?
What is the first of these? The second? Third? Fourth?
Do all mineral manures possess all of these qualities?
The second class of manures named in the general division of the subject, in the early part of this chapter, comprises those of a mineral character, or inorganic manures.