CHALDER or CHALDRON, an old dry measure of capac ity, usually called chalder in Scotland and chaldron in England. In Scotland the chalder was equivalent to 16 bolls (q.v.) of corn, and was used in computing the stipends of parish ministers, but, like the chaldron, it varied according to the locality and the com modity measured. As a measure for lime and coal, the chalder and the chaldron vary from 32 bushels upwards, and are in general equivalent in weight to about 251 cwt.