Tubular Cavities in Sarsens

Abstract

WITH regard to Mr. F. Chapman's letter on the probable æolian origin of sarsen rock (NATURE, August 18, p. 239), and his reference therein to my previous note, may I say that I was not referring to the holes so frequently present in the blocks—which I was told, when a student at the Royal School of Mines, some forty years ago, might be due to the presence of roots and rootlets in the sand before consolidation—but to a special case in which all the details suggested, from my previous knowledge of such things, the work of marine or esturine annelids. Without having seen what I saw, Mr. Chapman questions the validity of the grounds for the suggestion.