1Wood-Martin, W. G. Traces of the Elder Faiths of Ireland. Vol. 1. London: Longmans, Green, & Co. 1902. 323.
The author continues: "It was also a great resort of cripples; a regular array of sticks and crutches was deposited on the tumulus by professional mendicants who pretended to have been cured in order to enhance the reputation of the place, as large crowds upon patron days brought considerable sums into their pockets." This may be read in its entirely here.