³⁷Westropp, Thomas J. "Newgrange." The Journal of the Royal Society of Antiquaries of Ireland Fifth 3.2 (1893): 213.
Even once in state care, Newgrange was largely unsupervised and independent investigators, or vandals, could enter at will during some hours. One amateur sleuth thought that he had discovered a new passage within the tomb. He wrote to Westropp: "" I got my head and shoulders so far in that I was able to see that the passage turned towards the middle of the mound. It is nearly filled to the top with small broken stones and the parts of the large stones forming its sides are covered with carvings and spirals; it evidently leads to another chamber within the mound. Its exploration would probably result in an interesting discovery, and valuable arms and ornaments might be found."