In 1906 he presided over the executive committee of the First Congress of Hygiene of Catalonia and in 1907 resigned to the chair to return to Barcelona to dedicate itself to the investigation.
En 1906 presidiu a comisión executiva do Primeiro Congreso de Hixiene de Cataluña e en 1907 renunciou á cátedra para regresar a Barcelona a dedicarse á investigación.