Three of Verne's books from 1863-65 (Five Weeks in a Balloon, Journey to the Center of the Earth, and From the Earth to the Moon) were added into the series retroactively.
Tri Vernove knihy z rokov 1863-1865 (Päť týždňov v balóne, Cesta do stredu Zeme a Cesta na Mesiac) boli do cyklu zaradené spätne.