Chapter

 1 I   |       Veyssiere, Vincent, Vinco, Vogel, Wahlberg, Warrington, Washington,
 2 III |    assassinated on the Niger, to Vogel, who disappeared in the
 3 V   |         search for the traveller Vogel, who, in 1853, was sent
 4 V   |          of a felatah of Bornou, Vogel was merely held as a prisoner
 5 V   |     While engaged in looking for Vogel, he is also to explore all
 6 XXX |          Clapperton, and Oudney.—Vogel.—The Capital of Loggoum.—
 7 XXX |       kingdom of Baghirmi, which Vogel traversed in 1856, so as
 8 XXX |    therefore, very possible that Vogel may still be held as a prisoner
 9 XXX |        De Heuglin has set out on Vogel’s track with the expedition
10 XXX | unfortunately place the death of Vogel beyond a doubt.~Mosfeia
11 XXXI|      like Barth, Richardson, and Vogel, and, more fortunate than
12 XXXV|        He was not aware that Dr. Vogel’s last letters had made