254 Journal of the F.M.S. Museums. [VoL. IX, 
considerably in size and some of them are chamfered at one 
any special use had been made of them. I am inclined to 
think, therefore, that from the indiscriminate use of the 
materials and their somewhat fragmentary nature they were 
very likely obtained from some pre-existent building and 
were transported to the mountain top to be used a second 
time. 
Other points which have still to be dealt with are the 
purpose of the buildings and their age. It is much to be 
regretted that our excavations did not throw more light upon 
these two problems. It is obvious that such a mass of 
material would not have transported with so much trouble 
to the top of a high mountain unless for some reason which 
was, at any rate, sufficiently cogent to those who were 
responsible for undertaking the work. 
A suggestion has been made by Mr. Lefroy that the top 
of the mountain might possibly have been used as a sort of 
lighthouse, ‘signal fires being kept burning to guide mariners, 
sailing from Sumatra at night,” but, as he says immediately 
after this, “it is improbable materials such as cut granite 
and bricks would have been carried 4,000 feet up a mountain 
side to form a base for a signal fire when there was any 
quantity of sandstone, much easier to work, ready to hand.” 
For myself, I feel certain that the reason for these 
structures must be sought in religion. In many religions 
there is a tendency to consider the tops of high mountains as 
sacred, and sacred mountains are recognised both in Buddhism 
and Hinduism. Now, though there is a possibility that 
Mohamedans (Malays after their conversion to Mohame- 
