Spelling variants where there was no obviously preferred choice were left as is. Since there are numerous quotations in this work, this is partly due to spelling choices of different authors. Variants include: "dispatched" and "despatched;" "embedded" and "imbedded;" "encrusted" and "incrusted;" "hurras" and "hurrahs;" "northeast" and "north-east," and similar hyphenation in directions; "per cent." and "per cent" (inconsistent use of period); "recrossing" and "re-crossing;" "rockbound" and "rock-bound;" "signaled" and "signalled;" "stateroom" and "state-room;" "undercurrent" and "under-current."

Removed extra comma after "heart" on page 26: "the heart of a prince."

Changed "abunance" to "abundance" on page 167: "too great abundance."

Changed "Knigthstown" to "Knightstown" on page 187: "at Knightstown, Valentia."

Changed "announcment" to "announcement" on page 189: "this simple announcement."

Changed "develope" to "develop" on page 299: "develop the resources."

Changed "grip" to "gripe" on page 363, for consistency with spelling throughout: "a fresh gripe."

Changed "Hemipheres" to "Hemispheres" on page 381: "the two Hemispheres."

Changed "mitror" to "mirror" on page 410: "with the mirror attached."