The Ummites claim to have landed on Earth in March 1950, in the area of Digne. Three crafts brought a crew from the planet UMMO that set up a base (see the summary in the book by J-P PETIT), probably on the Peak of Blache, between Digne and La Javie, in the south of France. They spent a certain time analysing our habits, walked around Paris (and undoubtedly elsewhere), and avoided drawing attention to themselves. In 1965, Mr. Fernando SESMA, the organiser of a slightly esoteric Spanish "association " which claimed to be in contact with other extraterrestrials, begins receiving letters. Other recipients also receive some. Contact is lost in 1970, then is regained in 1987, and continues until 1993 (at least, we do not have letters possibly sent outside these periods) with other recipients, particularly in France. We currently have approximately 200 to 300 pages of texts written by the Ummites but it is possible that many other letters exist. In a 1988 letter, reference is made to the existence of 3,850 pages, c