15 volumes of this series are available in Logos, though it's hard to find, and not all commentaries in the series are marked as belonging to it.
(If I was in the marketing department I would pull them all together and advertise them as they are very hard to get elsewhere!)
I have suggested the addition of the Psalms volume (Smith, Pierson, Gouge) here.
(I will come back with some more suggestions when I get time to work through the complete list)