burglar-proof, and big enough to contain the families, goods, and cattle of their proprietors.[77] ----- Footnote 77: In some Archæological Notes contributed to the _Academy_ of March 25, 1882, on the Terra d’Otranto in the South of Italy, M. Lenormant mentions a peculiar usage still kept up by the inhabitants of the provinces of Bari and Lecce of constructing in their fields structures of uncemented stones called _truddhu_, which exactly reproduce on a smaller scale the type, arrangements, and mode of building characteristic of the Nuraghi of Sardinia, the Sesi of the island of Pantellaria, and the Talayots of the Balearic Islands. Like the Nuraghe, the Truddhu is a massive conical tower of uncemented stones with a central circular chamber rudely vaulted by the overlapping of the successive courses of its masonry. A low door gives access to the chamber. Sometimes a second chamber is constructed over the first, and approached by a narrow flight of steps winding along the side of the tower. These steps are present even when there is no second chamber, and forming a spiral round the outside of the tower, they give access to the paved platform on the top of the structure. The Truddhu serves as a shelter in bad weather and as a dwelling-place by night in the agricultural season, as the peasant proprietors often live in the towns and travel to and fro in bands for fear of brigands. Sometimes this structure is changed into a permanent home, and the village of Alberto-Bello consists wholly of houses of this form. Thousands of these constructions stud the plains. Some are being built, others are in all stages of dilapidation and decay. Although it is almost impossible to distinguish those that are ancient from those that were made but yesterday, M. Lenormant is of opinion that the origin of the custom must be referred to prehistoric times. A similar custom of constructing stone-built towers of refuge also prevails in the Caucasus, and Mr. Freshfield speaks of having as many as sixty of these structures in view at one time. -----