 Complete the following phrase:  Between 1910 and 1922, Pigot travelled to Bruny Island Tasmania, Tonga and Goondiwindi, Queensland to observe total solar eclipses; he also visited several observatories in Europe and North America. He made measurements of tides, deflection of the Earths crust and undertook experiments with a foucault pendulum. He observed a major earthquake on 1 September 1923 with a visiting Japanese seismologist, Fusakichi Omori. 