Note 306 — Chapter IV
Reading edition
It has been often asserted by eminent writers that a part of the fens in Lincolnshire was reclaimed by sea dikes under the government of the Romans. I have found no ancient authority in support of this allegation, nor can I refer to any passage in Roman literature in which sea dikes are expressly mentioned otherwise than as walls or piers, except that in Pliny (Hist. Nat. xxxvi, 24), where it is said that the Tyrrhenian sea was excluded from the Lucrine lake by dikes.