His most notable written work was a philosophical volume called "A Delineation of Universal Law".
His parents were members of the Society of Friends, and his father was the notable writer of many tracts on the employment of the poor and other topics.
It is an outline of matters relating to government and social organisation, arranged in an elaborate classification.
[1] Lowndes described "A Delineation of Universal Law" as "an excellent outline" whilst Marvin, referring to the long time that the author spent upon the work, says: "It is with a feeling of regret, mingled with something like reproach, that we find the labours of twenty years so wasted, and reflect upon the great expenditure of time and diligence that has been destitute of any useful result."
[1][8] According to a memorandum made by Mendes de Costa, the remains of his collections were in the hands of Ingram, Esq., at Northleach, in Gloucestershire (according to the DNB, 1885).