hat EM expressed in quaternions allows shuttling and storage of potentials in circuits, and also allows additional EM functioning of a circuit that a conventional EM analysis cannot reveal. He in fact shows that Tesla's patented circuits did exactly this.
9. Stoney, G.J. (1897) "XLVII. On a Supposed Proof of a Theorem in Wave Motion, To the Editors of the Philosophical Magazine," Philosophical Magazine, 5(43), 1897, p.368-373. Stoney first pointed out the bidirectional EM wave decomposition of the scalar potential.
10. Whittaker, E.T., "On the Partial Differential Equations of Mathematical Physics," Mathematische Annalen, Vol. 57, 1903, p.333-355; "On an Expression of the Electromagnetic Field Due to Electrons by Means of Two Scalar Potential Functions," Proceedings of the London Mathematical Society, Series 2, Vol.1, 1904, p.367-372.