Collection of Treatises on the Occult Sciences

All the aforesaid numbers are those of the square, and if one wishes to form the quadrature, one must take the said numbers as they are set down and form the two columns of the quadrature; and for greater clarity, we have set them down in this manner: they connect from 7 to 6, which makes 13; and if one proceeds further, one returns to take the last number, which is 6, and joins the said 6 with 5, which makes 11; and likewise for each, always taking the last number that is ahead and joining it with that which is behind, as may be seen in the aforementioned numbers detached from the square to form the two columns for the quadrature.

The last of the second column is formed by half of the last; and to finish the two columns, being unable to form them...