Whately has the following example in association--'Lias lies above red sandstone; red sandstone lies above coal; therefore lias lies above coal.' No doubt Whately would, in syllogising this, have changed the propositions to 'Red sandstone is lying,' &c., and have assumed that 'lying above coal' is a class to which red sandstone belongs. *** Here are examples of arguments in inherence-- A hot skin, quick pulse, intense thirst have invariably in my experience coexisted with fever; the person now examined exhibits these symptoms, so I infer that he has a fever. Great width of skull between the ears is invariably found united with a destructive temperament; this animal's skull is very wide between the ears; hence it may be concluded that he has a destructive temperament. Cloven feet belong universally--_i.e._ as far as our experience goes--to horned animals; we may conclude that this fossil animal, since it appears to have had cloven feet, was horned. I. Cloven feet | inhere with horns -------------------------+------------------- Fossil animal appears to | _it is probable he have had cloven feet | had horns_ When an architect, contemplating the fragments of a building, restores it in imagination after the analogy of similar buildings, we have an argument in inherence. Such speculations are generally too long and complex for analysis, but an instructive example occurs in Canon Rawlinson's _Seventh Oriental Monarchy_, which I will venture to quote, marking the phrases that introduce or express the rational idea. Observe the difference of style between this, which is real practical reasoning, and the trivial certainties of Syllogistic.