"The pure Elements of his creation were gradually mingled and infected with the corruptible elements of the outer world, and thus his body became more and more gross, and liable, through its grossness, to natural decay and death." The process of degeneration was slow at first, but "as time went on, the seed out of which men were generated became more and more infected with perishable elements.

The continued use of corruptible food rendered their bodies more and more gross; and human life was soon reduced to a very brief span." Basil Valentine then deals with the formation of the three _Principles_ of things, by the mutual action of the four Elements.
Fire acting on Air produced _Sulphur_; Air acting on Water produced _Mercury_; Water acting on Earth produced _Salt_.

Earth having nothing to act on produced nothing, but became the nurse of the three Principles.

"The three Principles," he says, "are necessary because they are the immediate substance of metals.

The remoter substance of metals is the four elements, but no one can produce anything out of them but God; and even God makes nothing of them but these three Principles." To endeavour to obtain the four pure Elements is a hopeless task.