1Wood-Martin, W. G. Traces of the Elder Faiths of Ireland. Vol. 1. London: Longmans, Green, & Co. 1902. 188. This passage may be read in its entirety here.
In another of publication, the author wrote, "Fairy Doctors' recommended the sacrifice of a black cat on the tomb, with the object of propitiating the spirit supposed to guard the hoard; and the contents of the urn, if carefully watched till midnight, would, under these circumstances, again assume its real [golden] character." (Wood-Martin, W.G., The Rude Stone Monuments of Ireland: Co. Sligo and Achill Island. Dublin: Hodges, Figges and Co., 1888. 140.)