  The structurally simplest Fe-based superconductor FeSe with a critical
temperature $T_{c}\approx$ 8.5 K displays a breaking of the four-fold
rotational symmetry at a temperature $T_{s}\approx 87$ K. We investigated the
electronic properties of FeSe using scanning tunneling microscopy/spectroscopy
(STM/S), magnetization, and electrical transport measurements. The results
indicated two new energy scales (i) $T^{*} \approx$ 75 K denoted by an onset of
electron-hole asymmetry in STS, enhanced spin fluctuations, and increased
positive magnetoresistance; (ii) $T^{**} \approx$ 22 - 30 K, marked by opening
up of a partial gap of about 8 meV in STS and a recovery of Kohler's rule. Our
results reveal onset of an incipient ordering mode at $T^{*}$ and its
nucleation below $T^{**}$. The ordering mode observed here, both in spin as
well as charge channels, suggests a coupling between the spins with charge,
orbital or pocket degrees of freedom.
