An essay to prove that the jurisdiction and conservacy of the river of Thames, &c

is committed to the lord mayor, and city of London, both in point of right and usage, by prescription, charters, Acts of Parliament, decrees ... to which is added, a brief description of those fish, with their seasons, spawning-times, &c., that are caught in the Thames, or sold in London : with some few observations on the nature, element, cloathing, numbers, passage, wars, and sensation, &c., peculiar to fish in general : and, also, of the water-carriage on the river Thames, to the several parts of the kingdom, with a list of the keys, wharfs, and docks, adjoining to the same