The Doctor's Friend.--The Origin of their Friendship.--Dick Kennedy at London.
--An unexpected but not very consoling Proposal.--A Proverb by no
means cheering.--A few Names from the African Martyrology.--The Advantages
of a Balloon.--Dr. Ferguson's Secret

CHAPTER FOURTH.

African Explorations.--Barth, Richardson, Overweg, Werne, Brun-Rollet, Penney,
Andrea, Debono, Miani, Guillaume Lejean, Brace, Krapf and Rebmann,
Maizan, Roscher, Burton and Speke

CHAPTER FIFTH.

Kennedy's Dreams.--Articles and Pronouns in the Plural.--Dick's Insinuations.
--A Promenade over the Map of Africa.--What is contained between two
Points of the Compass.--Expeditions now on foot.--Speke and Grant.--Krapf,
De Decken, and De Heuglin

CHAPTER SIXTH.

A Servant--match him!--He can see the Satellites of Jupiter.--Dick and Joe
hard at it.--Doubt and Faith.--The Weighing Ceremony.--Joe and Wellington.
--He gets a Half-crown

CHAPTER SEVENTH.

Geometrical Details.--Calculation of the Capacity of the Balloon.--The Double
Receptacle.--The Covering.--The Car.--The Mysterious Apparatus.--The
Provisions and Stores.--The Final Summing up