_The manuscript ends here--and of course we know that the "man" was not mad. He left behind a rich heritage indeed, for those few cells that escaped his wrath and floated down to the sea. Did we but know his origin we would erect a suitable memorial if we had to travel to the farthest reach of our galaxy. But the names he quotes are not in our repositories and as for the word "Earth" which he used for his homeworld, I need not remind my readers that the intelligent terrestrial inhabitants of the 22,748 planets of this sector use the term "Earth" or its synonyms "soil" and "world" to describe their planets. Of course, the term "Homewater" is gradually replacing this archaic concept as we extend our hegemony ever more widely across the disunited worlds of the galaxy._ _At that it seems strange that the unknown author's race should have passed. As individuals they had so many advantages, while we are so weak and individually so helpless. They could do almost everything except communicate and cooperate. We can do but little else, yet our larger aggregations can control entire worlds, some peopled perhaps with descendants of this very individual. It merely proves that Dannar's statement in the preface of his Thesis is correct._ "United, cohesive cooperation is the source of irresistible strength." THE END Transcriber's Note: This etext was produced from _Amazing Science Fiction Stories_ April 1960. 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. End of Project Gutenberg's The Issahar Artifacts, by Jesse Franklin Bone