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A chaldron was a dry English measure, beginning in 1826, of 4 quarters or 32 bushels. More recently, it has been applied exclusively to coal, for which a chaldron is equal to 36 bushels heaped up. On shipboard, 21 chaldrons of coal was the allowance to the score. The use of the unit ended in 1963 with the reform of the Weights and Measures Act.

This article incorporates content from the 1728 Cyclopaedia, a publication in the public domain.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Chaldron". A list of authors is available in Wikipedia.
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