We describe the evolution of weak magnetic fields in a quiet region ob
served at the Big Bear Solar Observatory on 1 October 1996. We observe
d puzzling changes in which one polarity changed without corresponding
increases or decreases in the other. Ln the rest of the same field, n
o special changes were observed, and a search of nearby days revealed
no similar changes. We do not wish to call Maxwell's laws into questio
n, we simply state that there are surprising, effects that we cannot u
nderstand with current models.