The author stated that this stalagmite was a calcareous deposit of a columnar shape, which had been brought to Edinburgh, about forty-six years ago, by his father, the late Admiral Sir David Milne.

Whilst commander-in-chief on the North American and West Indian Station during the three years ending 1819, Sir David had passed a part of every winter in the genial climate of Bermuda. He took much interest in the various objects of natural history abounding in the island, and particularly in its remarkable caves.