What is the author's tone in The Flame Trees of Thika: Memories of an African Childhood by Elspeth Huxley?

The book is written in a fairly straightforward style though there are some references to the time period that may confuse some readers. For example, Elspeth tells about the native way of building round houses and their tendency to use very little furniture. She says that the huts were, to some degree, sufficient for the needs of their inhabitants. They used smoke to keep away lice and goat urine to keep away another pest called "jiggas," which tended to lay eggs under a person's toenails.