This paper delves into the spread of gas in Latin Europe shortly before the First World War. It utilizes the "Annuaire général de l'industrie de l'éclairage et du chauffage par le gaz" from the year 1910 as its primary source, which provides details on the locations in various European countries, including those that make up Latin Europe (France, Spain, Italy, and Portugal), that had access to gas. The study examines regional contrasts in the network's expansion, categorizing the localities with gas access by population size. [ABSTRACT FROM AUTHOR]