Unidad documental simple 3 - ‘Verbum Sapienti’, by Sir William Petty

(‘In Petty's list of his own writings … the entry “Verbum Sapienti, and the value of People” stands opposite the year 1665, and the internal evidence makes it probable that the booklet was written in the latter part of that year.’ (The Economic Writings of Sir William Petty, ed. C. H. Hull (1899), vol. i.))