Munpus saith: It behoves you, O all ye seekers after this Art, to know that whatsoever the Philosophers have narrated or ordained, Kenckel, herbs, geldum, and carmen, are one thing!* Do not, therefore, trouble about a plurality of things, for there is one Tyrian tincture of the Philosophers to which they have given names at will, and having abolished the proper name, they have called it black, because it has been extracted from our sea. And know that the ancient priests did not condescend to wear artificial garments, whence, for purifying altars, and lest they should introduce into them anything sordid or impure, they tinged Kenckel with a Tyrian colour; but our Tyrian colour, which they placed in their altars and treasuries, was more clean and fragrant than can be described by me, which also has been extracted from our red and most pure sea, which is sweet and of a pleasant odour, and is neither sordid nor impure in putrefaction. And know ye that we have given many names to it, which are all true—an example of which, for those that possess understanding, is to be traced in corn that is being ground. For after grinding it is called by another name, and after it has been passed through the sieve, and the various substances have been separated one from another, each of these has its own name, and yet fundamentally there is but one name, to wit, corn, from which many names are distinguished. Thus we call the purple in each grade of its regimen by the name:of its own colour.