Book, Chapter

1        I, I   | lying along the northwestern coast of Gaul, afterwards narrowed
2        I, III |    distant from the southern coast of Britain at the east end,
3        I, XII |   intervals, on the southern coast, where their ships lay,
4        I, XVII|     were halfway between the coast of Gaul and Britain. There
5        V, XV  |    was cast upon the western coast of Britain by a great tempest.