SO and CS observations of molecular clouds - I. The observational data

We present in this article a rather extensive mapping survey of 19 Galactic molecular clouds in the CS (J = 2-1) and SO(J(N) = 3(2)-2(1)) lines using the Onsala 20 m telescope. The data, taken with the same angular resolution of similar to 40", are presented as integrated intensity maps and for some relevant positions we also present spectra of the previously mentioned lin es and their S-34 substituted isotopomer lines. For map positions where we have observed at least one of the less abundant isotopomer transitions pre have tabulated the integrated intensities of all observed transitions (Tabl e 2). Already a visual inspection of the maps reveals considerable differen ces between the SO and CS integrated intensity distributions.