Several pages of ads are duplicated in the original text; they
have been left as is.
page 72 - moved apostrophe in "Ranger's"
...changing the course of the Motor Rangers' vessel.
page 82 - changed period to comma at end of quote
I’ve got an idea." said...
page 83 - capitalized sentence
...said Mr. Tubbs. "we haven’t got any weapons, and those rascals...
page 110 - added comma at end of speech
...when you see it flying in a foreign port" observed...