Michael Martinez wrote:
>
>
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> The four-part style is quite evident in some of the ERB books, and is not
> really present in others. It may be that he switched to the four-part
> style rather than away from it, now that I give the matter some more
> thought. The Carson Napier books are like that, and at least two of the
> John Carter of Mars books (Lhana of Gathol and the Jupiter story, there
> being only one or two parts to the latter story).
>
Michael, you may be thinking of four or so books that ERB published
toward the end of his life, after he'd lost ARGOSY and BLUEBOOK as
markets and found a home in the less prestigious AMAZING STORIES and
FANTASTIC ADVENTURES. For those magazines, he wrote novellas rather
than serialized novels. The novellas (along with others that were
unpublished during ERB's lifetime and later rescued during the '60s
Burroughs boom) were subsequently collected into the final Mars,
Pellucidar, and Venus volumes.
ESCAPE FROM VENUS and LLANA OF GATHOL were published during ERB's
lifetime, containing four novellas each. SAVAGE PELLUCIDAR was
published in 1963, containing three novellas published during Burroughs'
lifetime and a fourth that had its first publication in the book.
JOHN CARTER OF MARS contained a juvenile John Carter story that had been
published toward the end of Burroughs life (as I recall, it was actually
written by John Coleman Burroughs), plus "Skeleton Men of Jupiter,"
presumably written for AMAZING STORIES but left unpublished when ERB
died in 1950.