Key points are not available for this paper at this time.
Reddening estimates based on the H I column density, galaxy counts method are given for nearly 13,000 galaxies in the Uppsala Cieneral Catalog, compiled by Nilson, and for nearly 4350 galaxies in the Second Reference Catalog, compiled by de Vaucouleurs, de Vaucouleurs, and Corwin, 1976, with |b| ≥ 9.°7.
Burstein et al. (Sun,) studied this question.