  The new results summarized here, including a brief comparison with the
paraconductivity, further suggest that the anomalous precursor (above Tc)
diamagnetism recently observed in the underdoped La1.9Sr0.1CuO4 superconductor
could be attributed to the presence, in addition to the conventional
superconducting pair fluctuations, of Tc-inhomogeneities with long
characteristic lengths associated with chemical disorder.
