Unfortunately Collier also interpolated his own forgeries. He used ancient paper and wrote on the pages with a rare ink which has proved to be very enduring. Scholars have discredited these forgeries, apart from one or two which fooled singers of the 1960s. The collection is not as famous as the Child Ballads or Percy's Reliques, but important nevertheless. From 1869 to 1899 a better edition was created, this time by William Chappell. There are copies in the British Library, Manchester University and America. The library of the University of Iowa has an almost complete collection of Roxburghe Club publications.
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