Transcriber's Note:
This etext was produced from _Amazing Stories_ April 1956 and was
first published in _Amazing Stories_ April 1927. Extensive research
did not uncover any evidence that the U.S. copyright on this
publication was renewed. Minor spelling and typographical errors
have been corrected without note.
The original equation given, x (1 + p)n, has been corrected to show
the 'n' as superscript: X(1 + p)^n.