Frost Formation on Dartmoor

Abstract

ON the afternoon of Tuesday, December 30, 1884, about 3 p.m., we were on Yes Tor, near Okehampton, long reputed the highest point of Dartmoor, though it is understood that the new survey now in progress brings out the neighbouring summit of High Willhayse a few feet higher. For about 200 feet below the Tor the ground was frozen hard. It was free from snow, the weather having been fine for several days, but everything was white with hoar-frost. On the rocks of the Tor this frost assumed a form of singular beauty, and, we think, not a common one. At least, neither of us can match it in either English or Alpine experience, or remember to have seen an account of anything like it.