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ing of Yellow Hard Soap, the operation of which is gone through in the most minute manner, explaining, as I proceed, every thing that may appear any ways dark to the understanding of a young beginner.

An operation of White Hard Soap, with the same peculiar minuteness, is also proceeded in, and described, with the grand secret of finishing for Pure White Soap, and how to scent or perfume the same.

It is also shown, how the perfume may be at an easy rate procured; with the method of preparing the Test for discovering the existence of an alkali in any liquid body.

After the conclusion of the observations on hard Soap, is inserted Two