Thanks to Joaquim Carreras Neto between 1864 and 1884 and Maurici
Hernández Ponsetí between 1885 and 1932 we have been able to analyse the
rainfall volume and frequency in Maó during a period of 70 years. Here we want to
present all the data they collected and the instruments they used as well as their
life, not just as observers but as pioneers in their field