Editing Lime kiln (section)

=== Lime use in agriculture and coal ===
[[File:Lime kilns in Pembrokeshire - Porthclais from the coastal path June 2021 13.jpg|thumb|280px|Lime kilns in Porth Clais, [[Wales]]; 2021]]
Knowledge of its value in [[agriculture]] is also ancient, but agricultural use only became widely possible when the use of coal made it cheap<ref>Platt, Colin (1978). ''Medieval England'', BCA, {{ISBN|0-7100-8815-9}}, pp. 116–7</ref> in the coalfields in the late 13th century, and an account of agricultural use was given in 1523.<ref>Sir Anthony Fitzherbert, ''Boke of Husbandrye'', 1523</ref> The earliest descriptions of lime kilns differ little from those used for small-scale manufacture a century ago.{{Citation needed|date=October 2009}} Because land transportation of minerals like limestone and coal was difficult in the pre-industrial era, they were distributed by sea, and lime was most often manufactured at small coastal ports.{{Citation needed|date=October 2009}} Many preserved kilns are still to be seen on quaysides around the coasts of Britain.