"Concerning rivers, we find a scientific opinion which we fear will not pass muster with the learned of our own times. It appears that rivers are "engendered in the hollow concavities of the earth," and are derived from congealed air: to give us a lively idea of which engendering, Peter informs us that it is in the same manner "as we see the aire in winter nights to be melted into a pearlie dew, sticking on our glasse windowes.""