William Granger

New, Original, and Complete Wonderful Museum and Magazine

Vol. 1, R.S. Kirby, London 1802.

Incomprehensible experiment

The Morning Post, 14 junio 1802, p. 1.

William Nicholson

Experiment of the Invisible Girl

Journal of Natural Philosophy, Chemistry, and the Arts, Vol. 3, W. Stratford, London septiembre 1802, pp. 56-57.