Transcriber’s Note

There is no evidence that the U.S. copyright on this publication was renewed.

Several obvious typographical errors were corrected, one possibletypographical error was left as is, and hyphenation was standardized.A table of contents was added. The above items aremarked in the text andeach includes a hover over pop-up with a short transcriber's note.A list of these items may be found at the end of the text.

Although the cover page includes the title "STAND BY FOR MARS!" that book is notincluded in this e-text.

Enjoy!