That means using the bully clergymen to show how a more volatile climate affects everything from agriculture to transportation to 21st-century warfare.
Critical of earlier historians who tended to treat Garibaldi with condescension, Ms Riall is anxious to display him as the resourceful manipulator of his own legend.
In three separate field trials - the most recent in Sudan last year - Hassanali's team showed that even minute doses of PAN could stop hopper bands dead in their tracks and make them break ranks.
The climactic showdown in Cuba, where many of the book's themes come together, is a good example of the authors' skill at bringing complex events to life.
During the treatment of pain syndrome, professor JIANG Jian' clinical experience by using later generation's prescriptions was extraordinary, deserved to learn an reference.