  The goal of the second flight of the Medium Scale Anisotropy Measurement
(MSAM1-94) was to confirm the measurement of cosmic microwave background
radiation (CMBR) anisotropy made in the first flight (MSAM1-92). The CMBR
anisotropy and interstellar dust emission signals from the two flights are
compared by forming the sum and difference of those portions of the data with
the same pointings on the sky. The difference data are consistent with a null
detection, while the summed data show significant signal. We conclude that
MSAM1-92 and MSAM1-94 measured the same celestial signal.
