Varlo, C. (1792). Miscellany of knowledge: a new work, by several gentlemen, on different subjects: --viz Lectures on natural philosophy, by an Egyptian Free-mason and philosopher, in correspondence [sic] to an English nobleman. Poetry, on different subjects, by an Irish gentleman, now in America. A twelve-month's tour, of observations, through America. To which is added, some political hints, for the perusal of the legislature, &c (The second edition ..). London: Printed for the editor.

Varlo, Charles. Miscellany of Knowledge: A New Work, By Several Gentlemen, On Different Subjects: --viz Lectures On Natural Philosophy, By an Egyptian Free-mason and Philosopher, in Correspondence [sic] to an English Nobleman. Poetry, On Different Subjects, By an Irish Gentleman, Now in America. A Twelve-month's Tour, of Observations, Through America. To Which Is Added, Some Political Hints, for the Perusal of the Legislature, &c. The second edition .. London: Printed for the editor, 1792.

Varlo, Charles. Miscellany of Knowledge: A New Work, By Several Gentlemen, On Different Subjects: --viz Lectures On Natural Philosophy, By an Egyptian Free-mason and Philosopher, in Correspondence [sic] to an English Nobleman. Poetry, On Different Subjects, By an Irish Gentleman, Now in America. A Twelve-month's Tour, of Observations, Through America. To Which Is Added, Some Political Hints, for the Perusal of the Legislature, &c. The second edition .. London: Printed for the editor, 1792.