In particular the role of protoadditive functors in the study of Hopf formulae for homology is explained..

slack dried hops

[I]nstead of tolls, he talks about negamiles — paying people to stay off the roads, so they needn't be built and mended so much. So far, however, no negamile programs exist […]

Leyden also discusses black laces, “Black laces are worn by fresh cuts. These laces are used by new Skinheads who have not earned their white laces.”