On Jan 20, 2014, at 10:48 PM, brumac2 at verizon.net wrote: (no message content) It would help us whose memory is less than complete (see theory below) if we knew what C551 is. Morgan’s theory of memory: As we get older, we gain more wisdom. The wisdom pushes out the memory, Roy Roy Morgan RoyMorgan at alum.mit.edu K1LKY Since 1958