About the middle of May there is an annual migration of young eels up the Thames at Kingston. They appear in shoals, giving to the margin of the river an appearance not altogether agreeable; but their origin and destination are alike matter of conjecture. It is reasonably supposed that these swarms migrate from the lakes in Richmond Park, where immense numbers are annually bred, and that they descend the rivers, stocking the creeks and streams for some miles above the town. There is generally a crowd of eager men, women, and children, provided with every possible vessel wherein to catch the slippery prey on the first intimation of their approach; and the animated scene has caused the occasion to be called Eel Fair.—Biden, History of Kingston-upon-Thames, 1852, p. 128.