LAU'i.oji — Some Invcsli[jiitlons on the Sou terrain. 



217 



It is probable Ihat all soiitenaius were thus protected by a covering of 

 dung or thatch. Some had a superimposed hut, probably built of wattles 

 and mud, with thatched roof, serving the same purpose. In Donegore cave, 

 in excavating the two upper chambers, which were completely filled up and 

 without any roofing-stones, the floor-level was only about four feet below that 

 of the surrounding ground; from this we may assume that the two upper 

 chambers were onlv semi-subterranean. 



I'lG. 1. 

 Knockdhu Sot'TERUAiN, sliowiiig end of first chamber, witli, to the left, doorway iipwnrds, and 

 mouth of ventihitiiig sluif t : and to right, secret trap-door, hy the covering of which five 

 chambei s could he completely hidden from intruders. 



K.I. A. I'ROC, vol,. XXXV, SECT. C. 



[30] 



