178 



The difference between the level of the water of the lake in March 

 and August was only about a foot, or a foot and a half; and the island 

 is of such a porous nature, that the water rushed in everywhere, and 

 prevented satisfactory work ; but we opened small excavations in various 

 places, and found the general section of the island to be : — 



General Section. Ft . m. 



6. Bog, about 0 6 



5. Bog, ashes, bones, and nuts, ,,16 



4. Stories and large oak sticks irregularly laid, ... „ 0 6 

 3. Peat, bones, and ashes, in which are oak beams lying in 



different directions, „ 1 6 



2. Nearly E. and W., oak beams, about four feet apart, . „ 0 6 



1. Peat, wood chips, and bones, over 1 0 



5 6 



Prom this it is seen that the artificial work, measured from the pre- 

 sent surface of the island, is more than 5*5 feet in thickness. On the 

 beams {Bed No. 2 in Section) there seems to have been a basket flooring, 

 but of this we could not be certain, on account of the depth of water in 



