Note RR — THE WHITE DOE OF RYLSTONE;

"At the extremity of the parish of Burnsal, the valley of Wharf forks off into two great branches, one of which retains the name of Wharfdale to the source of the river; the other is usually called Littondale, but more anciently and properly Amerdale. Dern-brook, which runs along an obscure valley from the N. W., is derived from a Teutonic word, signifying concealment."—Dr. Whitaker.—W. W. 1815.

The valley of Littondale, as is shown in Wordsworth's note, once bore the name of Amerdale. Though the name is not now given to the beck, it survives, singularly enough, in one pool in the stream, where it joins the Wharfe, which is still called "Amerdale Dub."—Ed.