This fish hath very large fins, very small and smooth scales, a red circle about his eyes, which are big and of a gold colour, and from either angle of his mouth there hangs down a little barb. In every Tench's head there are two little stones which foreign physicians make great use of, but he is not commended for wholesome meat, though there be very much use made of them for outward applications. Rondeletius says, that at his being at Rome, he saw a great cure done by applying a Tench to the feet of a very sick man. This, he says, was done after an unusual manner, by certain Jews. And it is observed that many of those people have many secrets yet unknown to Christians; secrets that have never yet been written, but have been since the days of their Solomon, who knew the nature of all things, even from the cedar to the shrub, delivered by tradition, from the father to the son, and so from generation to generation, without writing; or, unless it were casually, without the least communicating them to any other nation or tribe; for to do that they account a profanation. And, yet, it is thought that they, or some spirit worse than they, first told us, that lice, swallowed alive, were a certain cure for the yellow-jaundice. This, and many other medicines, were discovered by them, or by revelation; for, doubtless, we attained them not by study. Well, this fish, besides his eating, is very useful, both dead and alive, for the good of mankind. But I will meddle no more with that, my honest, humble art teaches no such boldness: there are too many foolish meddlers in physick and divinity that think themselves fit to meddle with hidden secrets, and so bring destruction to their followers. But I'll not meddle with them, any farther than to wish them wiser; and shall tell you next, for I hope I may be so bold, that the Tench is the physician of fishes, for the Pike especially, and that the Pike, being either sick or hurt, is cured by the touch of the Tench. And it is observed that the tyrant Pike will not be a wolf to his physician, but forbears to devour him though he be never so hungry. This fish, that carries a natural balsam in him to cure both himself and others, loves yet to feed in very foul water, and amongst weeds. And yet, I am sure, he eats pleasantly, and, doubtless, you will think so too, if you taste him. And I shall therefore proceed to give you some few, and but a few, directions how to catch this Tench, of which I have given you these observations.