Concurrently our correspondence, I tried another cycle with the NY Bot. Gardens. Redundancy and perseverance pay off! Now they have an a[ . . . ]st and they do have B.O. Dodge's critical correspondence which helps nail down some of the very points at issue. I had interview [sic] of Taine Bell some time ago, and soon had the good luck of encountering Carlton Schwerdt and his lecture notes of the course!