I think fit to tell thee these following truths; that I did neither undertake, nor write, nor publish, and much less own, this Discourse to please myself: and, having been too easily drawn to do all to please others, as I propose not the gaining of credit by this undertaking, so I would not willingly lose any part of that to which I had a just title before I began it; and do therefore desire and hope, if I deserve not commendations, yet I may obtain pardon. And though this Discourse may be liable to some exceptions, yet I cannot doubt but that most Readers may receive so much pleasure or profit by it, as may make it worthy the time of their perusal, if they be not too grave or too busy men. And this is all the confidence that I can put on, concerning the merit of what is here offered to their consideration and censure; and if the last prove too severe, as I have a liberty, so I am resolved to use it, and neglect all sour censures. And I wish the Reader also to take notice, that in writing of it I have made myself a recreation of a recreation; and that it might prove so to him, and not read dull and tediously, I have in several places mixed, not any scurrility, but some innocent, harmless mirth, of which, if thou be a severe, sour-complexioned man, then I here disallow thee to be a competent judge; for divines say, there are offences given, and offences not given but taken. And I am the willinger to justify the pleasant part of it, because though it is known I can be serious at seasonable times, yet the whole Discourse is, or rather was, a picture of my own disposition, especially in such days and times as I have laid aside business, and gone a-fishing with honest Nat. and R. Roe; but they are gone, and with them most of my pleasant hours, even as a shadow that passeth away and returns not. And next let me add this, that he that likes not the book, should like the excellent picture of the Trout, and some of the other fish, which I may take a liberty to commend, because they concern not myself. Next, let me tell the Reader, that in that which is the more useful part of this Discourse, that is to say, the observations of the nature and breeding, and seasons, and catching of fish, I am not so simple as not to know, that a captious reader may find exceptions against something said of some of these; and therefore I must entreat him to consider, that experience teaches us to know that several countries alter the time, and I think, almost the manner, of fishes' breeding, but doubtless of their being in season; as may appear by three rivers in Monmouthshire, namely, Severn, Wye, and Usk, where Camden observes, that in the river Wye, Salmon are in season from September to April; and we are certain, that in Thames and Trent, and in most other rivers, they be in season the six hotter months.