And when the Salmon seeks a fresher stream to find; (Which hither from the sea comes, yearly, by his kind,) As he towards season grows; and stems the watry tract Where Tivy, falling down, makes an high cataract, Forc'd by the rising rocks that there her course oppose, As tho' within her bounds they meant her to inclose; Here when the labouring fish does at the foot arrive, And finds that by his strength he does but vainly strive; His tail takes in his mouth, and, bending like a bow That's to full compass drawn, aloft himself doth throw, Then springing at his height, as doth a little wand That bended end to end, and started from man's hand, Far off itself doth cast, so does that Salmon vault; And if, at first, he fail, his second summersault He instantly essays, and, from his nimble ring Still yerking, never leaves until himself he fling Above the opposing stream----. This Michael Drayton tells you, of this leap or summersault of the Salmon. And, next, I shall tell you, that it is observed by Gesner and others, that there is no better Salmon than in England; and that though some of our northern counties have as fat, and as large, as the river Thames, yet none are of so excellent a taste. And as I have told you that Sir Francis Bacon observes, the age of a Salmon exceeds not ten years; so let me next tell you, that his growth is very sudden: it is said that after he is got into the sea, he becomes, from a Samlet not so big as a Gudgeon, to be a Salmon, in as short a time as a gosling becomes to be a goose. Much of this has been observed, by tying a riband, or some known tape or thread, in the tail of some young Salmons which have been taken in weirs as they have swimmed towards the salt water; and then by taking a part of them again, with the known mark, at the same place, at their return from the sea, which is usually about six months after; and the like experiment hath been tried upon young swallows, who have, after six months' absence, been observed to return to the same chimney, there to make their nests and habitations for the summer following; which has inclined many to think, that every Salmon usually returns to the same river in which it was bred, as young pigeons taken out of the same dovecote have also been observed to do. And you are yet to observe further, that the He-salmon is usually bigger than the Spawner; and that he is more kipper, and less able to endure a winter in the fresh water than the She is: yet she is, at that time of looking less kipper and better, as watry, and as bad meat.