“The advantages of Chemical Science: (in an agricultural point of view,) illustrated by a series of observations on the nature and improvement of soils, and on the use and application of manures: principally abridged from Sir Humphry Davy’s ‘Elements of agricultural chemistry’”, S. Afr. Q. J., vol. 1, no. 5, pp. 33–40, Oct. 1831, doi: 10.21504/saqj.15.2597.