[142] Reports of British Association, 1881.
[143] Comptes Rendus, 1875, January to June, p. 685.
[144] Tel. Jour., November 15, 1881.
[145] Minutes and proceedings of the Institute of Civil Engineers, vol. lx. p. 412, and vol. lxiv. p. 343.
[146] See ‘Earth Tremors,’ p. 309, experiments of M. d’Abbadie, &c.
[147] Meteorologia Endogena.
[148] Ibid.
[149] Phil. Trans. vol. xlix. p. 544.
[150] Annual Register, vol. iv. 1761, p. 92.
[151] Phil. Mag., May 1876, p. 447.