THE ISL A ND OF FOUL A. 
251 
were found afterwards at the moutli of a small cave by the 
coast. It would, however, appear at present, if the natives 
did not impose on some of our party, that the lum has 
ceased to exist, as they could discover nothing but loose 
stones filling the heretofore unfathomable abyss. 
The following is a register of the weather in the month 
of July, on the summit of Foula, or about 1840 feet above 
the level of the sea. 
