Above: Dr. L. Don Leet, noted director of the Harvard seismological station at Oak Ridge, Harvard, shown at his desk today studying records of the earthquake which shoot the eastern seaboard. Below: The record taken by Harvard experts today. Horizontal lines represent a half hour, vertical dotted lines a minute. In the middle of the roll a clear break in the horizontal line can be seen. This marks the heighth of the quake and measures about 7 minutes, beginning at 1:05:16 A.M. Slightly more than half way across, when the shocks grew less intense, the line begins to record again, although visibly wavering. On the next half-hour line, it returns to normal.