Wilczek responds on absolute units

In my essay “On Absolute Units, II: Challenges and Responses” (Physics Today, January 2006, page 10), in the first column, the ratio between the fundamental mass scales in strong and Planck units should read $M strong / M Planck ≡ m p G 2 / ℏ c$ ⁠.

In the second column, the ratio between the fundamental mass scales in atomic and Planck units should read $M atomic / M Planck ≡ m e G 2 / ℏ c$ ⁠.