Churchill Inspects Damage Around Britain, Bombers Keep Coming

The transcript describes a war chief's efforts to maintain morale in a bombed city. It notes the emergence of new leaders in small groups and reports on the widespread damage and casualties in London, with over 4,000 deaths in a month.

What does the phrase 'checking on the city's good humor under bomb' imply about the situation?

What is the reported death toll mentioned in the text?