As much hath been said of the advantages of reconciliation, which, like an agreeable dream, hath passed away and left us as we were, it is but right that we should examine the contrary side of the argument, and enquire into some of the many material injuries which these Colonies sustain, and always will sustain, by being connected with and dependent on Great Britain. To examine that connection and dependence, on the principles of nature and common sense, to see what we have to trust to, if separated, and what we are to expect, if dependent. What rhetorical device does the author use in this text?