In April 1735 Bouguer set out on an expedition, organised by the Académie Royale des Sciences, to Peru to measure the length of a degree of meridian at the equator.
Sa April 1735 Bouguer-set out sa isang paglalayag, organised ng Académie Royale des Sciences, sa Peru upang sukatin ang haba ng isang antas ng katanghaliang tapat sa ekwador.