John Wilkins

The Mathematical and Philosophical Works of the Right Rev. John Wilkins

Vol. 2, C. Whittingham, London 1802 (I ed. 1641), pp. 1-87.

William Nicholson

Narrative and Explanation of the Appearance of Phantoms and other Figures in the Exhibition of the Phantasmagoria. With Remarks on the Philosophical Use of common Occurrences

Journal of Natural Philosophy, Chemistry, and the Arts, Vol. 1, W. Stratford, London febbraio 1802, pp. 147-151.

William Nicholson

Experiment of the Invisible Girl

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