[A] In our Map of the Moon, prepared expressly for this work, we have so far improved on Beer and Maedler as to give her surface as it appears to the naked eye: that is, the north is in the north; only we must always remember that the west is and must be on the right hand.
[B] In our Map the Mappa Selenographica is copied as closely and as fully as is necessary for understanding the details of the story. For further information the reader is referred to Nasmyth's late magnificent work: the MOON.
[C] We must again remind our readers that, in our map, though every thing is set down as it appears to the eye not as it is reversed by the telescope, still, for the reason made so clear by Barbican, the right hand side must be the west and the left the east.
[D] BALTIMORE GUN CLUB, pp. 295 et seq.