First American edition, McGraw-Hill, 1969
First British paperback edition, with Vivian Darkbloom's notes,
cover design (Cattleya orchid) suggested by the author, Penguin, 1970
Ada in Time and Space
These are English translations of two chapters in the appendix of the annotated German re-edition of Ada by Rowohlt Verlag, translated by Uwe Friesel, Marianne Therstappen and Dieter E. Zimmer, scheduled for publication in September, 2010. One reason for the prepublication is the hope that if somebody should detect factual errors or gross omissions, she or he will be kind enough to let me know (mail [at] d-e-zimmer.de) so I can correct them as long as the book is still in preparation.
and Antiterra Gazetteer