  The first FUV (lambda lambda 1350-1750 A) spectral imaging observations of
the Eridanus superbubble, obtained with the SPEAR/FIMS mission, have revealed
distinct fluorescent emission from molecular hydrogen. In this study, the
observed emission features were compared with those from a photo-dissociation
region model with assumed illuminating stellar fields. The result showed rather
high line ratios of I_{1580}/I_{1610}, which may imply the existence of
high-temperature molecular clouds in the region. The H_2 fluorescence intensity
showed a proportional correlation with H-alpha emission, indicating that the
fluorescence and the recombination emission have similar physical origins.
