Background
Louis was born on December 14, 1859, in Brest, Bretagne, France.
Louis was born on December 14, 1859, in Brest, Bretagne, France.
Graduated from Catholic University, Paris.
Arrived in China on October 24, 1883. In 1885 he worked as Director of the Meteorological Observatory at Zi-ka-Wei, near Shanghai: he was Assistant in Observatory. In August 1897 he Became Director and Conducted Meteorological and Seismological Departments of the observatory.