Remarks on "The Efficiency of Quenching Collisions and the Radius of the Excited Mercury Atom"

It is shown that the interpretation given to the reabsorption-factor $f$ in the previous publication was erroneous. An improved and general treatment of reabsorption is given in which the radius of the excited mercury atom turns out to be 3.4A for hydrogen and 5.7A for CO collisions. The efficiencies of collisions with other gases are 0.4 for ${\mathrm{H}}_2$O, 0.2 for ${\mathrm{N}}_2$, 0.05 for A, and 0.005 for He.