MANSFIELD, a village, in the parish of New-Cumnock, district of Kyle, county of Ayr, 1 mile (N. E. by E.) from New Cumnock; containing 122 inhabitants. This village is situated a short distance north of the river Nith, and of the high road from New Cumnock to Kirkconnel, and is the seat of a considerable colliery. The coal formation here is an isolated basin, in which six seams of coal have been ascertained, in the whole about forty feet in thickness; the uppermost seam is a fine cannel coal, two feet and a half thick, and is much in demand for making gas. Lime-kilns, on an excellent plan, have been erected by Sir Charles G. S. Menteath, Bart. A railway, nearly three miles in length, has been laid down to the boundary of the counties of Dumfries and Ayr, to facilitate the transport of the coal and lime to suitable markets. A mill for carding wool was erected some time since by Mr. Hunter, at which most of the home-spun wool is carded. The meadow-lands around the village have latterly been much improved; in its neighbourhood is Mansfield Hall, the property of Sir Charles Menteath.