Chapter

 1 IV     |       some precious documents concerning the manners, government,
 2 IX     | Cosmography by Professor Joe.—Concerning the Method of guiding Balloons.—
 3 XII    |      notions already acquired concerning the Nile. It was entitled “
 4 XV     |  nothing but praises to utter concerning the hospitality of these
 5 XIX    |     region; interrogated them concerning it, and, from their different
 6 XX     |    the River of the Gazelles, concerning which M. Guillaume Lejean
 7 XXIV   |    conjectures of geographers concerning the existence of a vast
 8 XXX    |       the doctor had no fears concerning the successful issue of
 9 XXXVIII|       back any authentic data concerning it. On the 4th of May he
10 XLIX   | companions a thousand details concerning the country they were crossing.