  Using the HEGRA system of imaging atmospheric Cherenkov telescopes, a region
of the Galactic plane (-10 deg < b < 5 deg, 38 deg < l < 43 deg) was surveyed
for TeV gamma-ray emission, both from point sources and of diffuse nature. The
region covered includes 15 known pulsars, 6 known supernova remnants (SNR) and
one unidentified EGRET source. No evidence for emission from point sources was
detected; upper limits are typically below 0.1 Crab units for the flux above 1
TeV. For the diffuse gamma-ray flux from the Galactic plane, an upper limit of
6.1*10E-15 ph/(cm2 s sr MeV) was derived under the assumption that the spatial
distribution measured by the EGRET instrument extends to the TeV regime. This
upper flux limit is a factor of about 1.5 larger than the flux expected from
the ensemble of gamma-ray unresolved Galactic cosmic ray sources.
