The following inconsistencies were kept:

• Aluminum -- Aluminium
• canceled -- cancelled
• Cubit's Gap -- CUBITS GAP
• EncyclopÆdia -- Encyclopedia
• Feed-water -- Feed-Water
• Light-House -- lighthouse
• sea-weed -- seaweed

Punctuation has been corrected without explicit notice. The following changes have been made (c. = catalogue page):

• p. vii "Nordenskiold" changed to "NordenskiÖld"
• p. 9 "alsoo" changed to "also".
• p. 114 "United States Court Survey" changed to "United States Coast Survey".
• p. 132 "22°.5" changed to "22.5°".
• c. 1 "RiveteÉ" changed to "RivetÉe".
• c. 3 "Metcalf's" changed to "Metcalfe's".
• c. 5 "Matthew's" changed to "Matthews's".
• c. 10 "Hermann" changed to "Herrmann".
• c. 12 "Maunal" changed to "Manual".
• c. 14 "Richard's" changed to "Richards's".
• c. 15 "Wehrenfenning's" changed to "Wehrenfennig's".
• c. 18 "Virignia" changed to "Virginia".