Occurrence of Attributes in Original Text

The text related to the cultural heritage 'St Kilda' has mentioned 'Arch' in the following places:
Occurrence Sentence Text Source
MacLean (1972) suggests that the arch was broken when struck by a galleon fleeing the defeat of the Spanish Armada, but other sources, such as Mitchell (1992) and Fleming (2005), suggest that the arch was simply swept away by one of the many fierce storms that batter the islands every winter.