Subtitled "An Anthology on the Themes of Sacrifice and Redemption".
Edited by Harry Harrison.
The idea of getting a number of writers to produce stories on a set theme
was discussed at a London SF convention, Kyril Bonfiglioli (editor of Science
Fantasy/Impulse) being one of those taking part: the first stories in the
series, on the theme of 'sacrifice', appeared in his magazine. The idea was
expanded for this volume to include stories on the theme of 'redemption'.
Introduction, by Harry Harrison
"The Circulation of Blood..." and "...And the Stagnation of the Heart"
by Brian W. Aldiss
"High Treason" and "The Dipteroid Phenomenon" by Poul Anderson