"Superiority" was first published in the August 1951 issue of The Magazine of Fantasy and Science Fiction. Sir Arthur C. Clarke (1917-2008) is regarded as one of the most-influential science fiction writers of all time. He was named a Grand Master by the Science Fiction and Fantasy Writers of America, and was inducted into the Science Fiction and Fantasy Hall of Fame.

"Rescue Party" was first published in the May 1946 issue of Astounding Science-Fiction.

Sir Arthur C. Clarke (1917-2008) is regarded as one of the most-influential science fiction writers of all time. He was named a Grand Master by the Science Fiction and Fantasy Writers of America, and was inducted into the Science Fiction and Fantasy Hall of Fame.

"The Last Command" was first published in the November 1965 issue of Bizarre! Mystery Magazine. Sir Arthur C. Clarke (1917-2008) is regarded as one of the most influential science fiction writers of all time. He was named a grand master by the Science Fiction and Fantasy Writers of America and was inducted into the Science Fiction and Fantasy Hall of Fame.

The Secret was first published in the Aug. 11, 1963 issue of This Week. Sir Arthur C. Clarke (1917-2008) is regarded as one of the most-influential science fiction writers of all time. He was named a Grand Master by the Science Fiction and Fantasy Writers of America, and was inducted into the Science Fiction and Fantasy Hall of Fame.

"Hide-and-Seek" was first published in the September 1949 issue of Astounding Science-Fiction. Sir Arthur C. Clarke (1917-2008) is regarded as one of the most-influential science fiction writers of all time. He was named a Grand Master by the Science Fiction and Fantasy Writers of America, and was inducted into the Science Fiction and Fantasy Hall of Fame.

"A Walk in the Dark" was first published in the August 1950 issue of Thrilling Wonder Stories. Sir Arthur C. Clarke (1917-2008) is regarded as one of the most-influential science fiction writers of all time. He was named a Grand Master by the Science Fiction and Fantasy Writers of America, and was inducted into the Science Fiction and Fantasy Hall of Fame.

"The Lion of Comarre" was first published in the August 1949 issue of Thrilling Wonder Stories. Sir Arthur C. Clarke (1917-2008) is regarded as one of the most-influential science fiction writers of all time. He was named a Grand Master by the Science Fiction and Fantasy Writers of America, and was inducted into the Science Fiction and Fantasy Hall of Fame.

"Neutron Tide" was first published in the May 1970 issue of Galaxy. Sir Arthur C. Clarke (1917-2008) is regarded as one of the most-influential science fiction writers of all time. He was named a Grand Master by the Science Fiction and Fantasy Writers of America, and was inducted into the Science Fiction and Fantasy Hall of Fame.

"'If I Forget Thee, Oh Earth...'" was first published in the September 1951 issue of Future. Sir Arthur C. Clarke (1917-2008) is regarded as one of the most-influential science fiction writers of all time. He was named a Grand Master by the Science Fiction and Fantasy Writers of America, and was inducted into the Science Fiction and Fantasy Hall of Fame.

"A Meeting with Medusa" was first published in the December 1971 issue of Playboy. Sir Arthur C. Clarke (1917-2008) is regarded as one of the most-influential science fiction writers of all time. He was named a Grand Master by the Science Fiction and Fantasy Writers of America, and was inducted into the Science Fiction and Fantasy Hall of Fame.