In September, 1947, whilst digging trenches for the laying of the foundations of a building in the field known as ‘ta Trapna iz-Zghira’, in the parish of Zebbug (Ref. 394228 on the standard 2-inch map of Malta), five early tombs were discovered. The workmen, not appreciating the importance of the discovery, cut a trench 2 feet wide through the middle of two of these burials, thus partially destroying the deposit. Further destruction was prevented by Mr. Ian Small, Civil Engineer of H.M. Dockyard, who stopped the work and reported the discovery to the Museum; and on inspection of the site it immediately became apparent that we were dealing with tombs of a type hitherto unrecorded. The excavation of these remains was conducted with the fullest care to secure adequate records and ensure the recovery of all the archaeological material.
The tombs were five in number, irregularly disposed within an area of 50 sq. yards (Fig. 1). They all exhibited more or less the same features. Each tomb consisted of a saucer-shaped cavity roughly cut in the rock-bed, which at this point is the soft, white, Middle Globigerina Limestone and which underlies about 2 ft. of field soil. The diameter of the tombs averaged about 6 ft., and they attained a depth of about 2 ft. at the centre. A single layer of flat, roughly chipped slabs, derived from the local rock-bed, was used to pave the tomb floor. These slabs, about 4 in. in thickness and 10 in. in width, varied in length from 6 in. to 2 ft. 3 in. Overlying the slabs there was a layer of marl, about 6 in. in thickness, in which were embedded human skeletal remains, mostly in a fragmentary state and in utter disorder.