Half Past Human, by T. J. Bass (real name Thomas J. Bassler, M.D., a pathologist) is a fixup science fiction novel published in 1971. Two short stories were combined and fleshed out to form this novel: "Half Past Human", first published in Galaxy Science Fiction in December of 1969, and "G.I.T.A.R.", first published in If in November and December of 1970. The novel belongs to the Hive series, which also includes The Godwhale.
Bass' Hive series of stories are replete with obvious and not-so-obvious references to nomenclature commonly used in pathology, including eponymic puns (note a male character's observation of a female character's attractive "Howell-Jolly body").
Half Past Human was nominated for the Nebula Award for Best Novel in 1971.
Read more about Half Past Human: Plot Summary