If you know two sides of a right triangle, you can find the third by plugging them into the Pythagorean Theorem.

the free soul to flitting air resign'd

And which in ravage the more loathsome evil is— / Their real lues, or our pseudo-syphilis?

Most of the participants in the mundane apas are hobby printers—-and the disdain with which our fandom once viewed Xeroxing of fanzines is but a pale reflection of the way mundane apans have looked upon the mimeo and the ditto as a means of publishing papers (as they call their amateur publications).