References External links City of Cherbourg: brief biographical info Polemic between Liais and some Brazilian astronomers (in Portuguese) Meteorology and biographical information Observatório Nacional - 175 years of service (in Portuguese) 1826 births 1900 deaths People from Cherbourg-Octeville 19th-century French astronomers French explorers 19th-century French botanists Botanists with author abbreviations Botanists active in South America