From Benjamin Franklin to James Logan, 20 January 1750
To James Logan
MS not found; reprinted from extract in Sparks, Works, VI, 100.
[January 20, 1750]
The magical squares, how wonderful soever they may seem, are what I cannot value myself upon, but am rather ashamed to have it known I have spent any part of my time in an employment that cannot possibly be of any use to myself or others.