Johnston, James Finlay Weir, agricultural chemist, born at Paisley, educated at Glasgow; acquired a fortune by his marriage in 1830, and devoted himself to studying chemistry; after some years in Sweden he was chosen lecturer in Durham University, but he resided in Edinburgh, and wrote his “Catechism of Agricultural Chemistry,” since translated into most European languages, and his “Chemistry of Common Life”; he died at Durham (1796-1855).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Johnston, Alexander Keith * Johnstone