Gesamtlänge aller Episoden:
This episode focuses on a recording from an Iowa cancer clinic about cobalt's use in cancer treatments.
This episode focuses on Westphal's experience observing the goldmines of Johannesburg, South Africa (part 2 of 2).
Episodes 21 and 22 focus on Westphal's experience observing the goldmines of Johannesburg, South Africa.
Episode 3 focuses on interviews with sailors on the ship traveling across the Atlantic. Episode 4 discusses the ship's arrival in Monrovia, Liberia, and Westphal's initial impressions of the port.
Episode 15 focuses on the Bakuba kingdom and Westphal's experience meeting the king. Episode 16 discusses a Methodist mission school in the Congo.