Ah, that's a shame. The world also lost Branko Grünbaum, another great polytope researcher, last month: (https://en.wikipedia.org/wiki/Branko_Grünbaum). (I was confusing his 1966 work on polyhedra with regular faces — an outgrowth of his dissertation — and his unpublished work on uniform polyhedra. Wikipedia also says it was Victor Zalgaller who proved Johnson's list of 92 "Johnson solids" was complete.) But it's good to learn that the unpublished work on uniform is almost complete. I wonder who might have a copy. —Dan ----- Norman Johnson died in 2017; his Wikipedia article mentions the status of his late work. He completed _Geometries and Transformations_, which was published this year; he left an unfinished work on uniform polytopes, which will also be published in some form. On Tue, Oct 30, 2018 at 10:09 AM Dan Asimov <dasimov@earthlink.net> wrote:

Btw, when I e-mailed Johnson a few years ago, he was still working on completing his magnum opus, which I think is this same classification (or am I confused?).

Anyone know if it's now complete?