Page 10: ... to lesson the difference ... changed to ... to lessen the difference ....
Page 51: ... from Port Jackson to Cape Horn as 8.000 miles ... changed to ... from Port Jackson to Cape Horn as 8,000 miles ....
Page 64-65: replicated text deleted.
Page 133: exclamation mark inserted after Neptune has only one third of this volume (as in surrounding text).
Page 134: Professer Schumacher changed to Professor Schumacher.
Page 139: M. Foucalt’s communication describing his experiments ... changed to M. Foucault’s communication describing his experiments ....
Page 141: Ille sante aux yeux ... changed to Il saute aux yeux ....
Page 171: ... south cost of Norway ... changed to ... south coast of Norway ...; The Troudhjem Light ... changed to The Trondhjem Light ...; Lower Farn Island Light changed to Lower Farne Island Light.
Page 193: ... the heavenly bodies are Sun’s ... changed to ... the heavenly bodies are Suns ....