For W2 and W4, the growth rings are almost exactly the same size through 1947, when the east side of the tree (W4) began producing consistently thicker rings. This pattern continued through 1980 with exceptions only in 1962-63 and 1970. For cores W3 and Wl, the downhill portion of the growth ring, which is the direction of tilt, was consistently thicker than the uphill portion. Exceptions occurred only during 1963-65 and 1969.