1. 1818. Annales de Chimie, quoted in full by Larmor in his recent book, ‘Æther and Matter,’ pp. 320–322.
2. 1900. Proc. R.S.E., July vol. of reports, in French, of the Cong. Inter.; and Phil. Mag., Aug., Sept., 1900
3. 1900. Phil. Mag., Aug.
4. 1887. Phil. Mag., December