This study examines for the first time tree cases of inverted amphorae used like soils improvement under floors of domus in Melite at the Roman times. The finality of inverted amphorae is once again recognized, based on studies' experiences of authior, througt analysis of lithological soils characters. In the first book of this Collection (Itinera ,1, 1996) the author offered some technical factors for analysis of the possible function of this biulding method and now, using the same method, i.e. with regard to the natural state of land, their statis lift, etc., has been possible to understand the aim of amphorae structures in Roman age