FOUR years ago I installed in a cellar beneath the Victoria Club, at Ryde, an astronomical level. It was oriented at right angles to the shore-line, only a few yards distant. At the time of high water I found, contrary to my expectation, that the strand, rather than sinking, rose upwards. This I attributed to the tide backing up underground drainage beneath the land, which in consequence bulged upwards. Sir George Darwin, however, makes the suggestion that my observations might be explained on the assumption that the load of water in the English Channel on the south of the Isle of Wight might reverse the effect of a smaller body of water in the Solent on the north side.