| Abstract | The results of observations of the neutral hydrogen emission of 136 spiral galaxies observed using the 21 cm spectral-line system of the Arecibo Observatory are presented. Most of the 114 detected objects have been mapped along the major axis, and cumulative spectra and position-velocity contour maps for each of them are presented. The data are used to determine the overall H I content, systemic velocity, line widths, and scale-length H I diameters. Data are also presented, in detailed tabular form, for each of the positions observed on the detected objects. |
