Some of the illustrations were moved for reader’s convenience.
A few punctuation errors were corrected, also the following changes were made, on page
74 The words “completed our task” filled in
97 “a” changed to “as” (as they would not keep so long)
324 “I” changed to “If” (If no lipthalener came into port)
366 “hot” changed to “not” (I should say not.)
375 “quicky” changed to “quickly” (the compartment being quickly emptied of its water)
383 “speed” changed to “sped” (the Orion sped northward)
394 “poinas” changed to “points” (it points somewhere south).
Otherwise the original was preserved, including possible errors in Volapük, and inconsistencies in spelling and hyphenation.