Note 71 — Chapter IX · ToC
Reading edition
It may be useful to give references to works in English in which the principal instruments for registering distant earthquakes are described. For Cancani's vertical pendulum, see Brit. Assoc. Rep., 1896, pp. 46-47; Darwin's bifilar pendulum, Brit. Assoc. Rep., 1893, pp. 291-303, and Nature, vol. 1., 1894, pp. 246-249; Milne's horizontal pendulum, Seismology, pp. 58-61; Rebeur-Paschwitz's horizontal pendulum, Brit. Assoc. Rep., 1893, pp. 303-308.