Anchor Frosts


MR. J. HANDS, in NATURE of January 14 (p. 246), gives an interesting account of an anchor frost, “the most marked effects of which are,” he says, “seen in comparatively still water.” He adds, “it is said, that water coming upon it (anchor frost) from above will rise in level and flow over it, as over a solid obstruction. This I have not seen myself.” 
DOI: 10.1038/033269b0