II. BEFORE I refer to other matters I give a plan made by Mr. Neil Baynes, which he kindly permits me to use, of the cromlech at Ty Newydd. It shows well the kind of nut the archæologist has to crack when cromlechs are studied astronomically. It appears twice in Mr. Griffith's list. I made it out as oriented to the winter solstice rising, Mr. Baynes to the summer solstice rising. We took our angles along two surfaces of the same nearly rectangular supporter A; I nearly along the line of the quoit, he across it. I also give a copy of a photograph taken by my wife showing the clino-compass in the line of the outlook between the stones A and C. Either reading may be the correct one, but, be it remarked, both are solstitial, and no other astronomical alignment is suggested by the arrangement of the stones. It may be that the outlook was between the stones C and B, the direction being parallel to the south surface of A, and not as I placed it; on this view we are dealing with the summer solstice sunrise, and this may be accepted for the statistical statement.