An Introduction towards an Essay on the Origin of the Passions, in which it is endeavored to be show'n how they are all acquired, and that they are none other than Associations of ideas of our own making, or that we learn from others (1741)
Conjecturae quaedam de sensu, motu, et idearum generatione, liite teokseen De Lithontriptico a Joanna Stephens nuper invento Dissertatio Epistolaris (Bath, 1746); julkaistu uudelleen teoksessa Samuel Parr (toim.), Metaphysical Tracts by English Philosophers (1837)
Various Conjectures on the Perception, Motion, and Generation of Ideas