Unfortunately, from the tenable theory that the intensity of a sensation increases by definite additions of stimulus, Fechner was led on to postulate a unit of sensation, so that any sensation s might be regarded as composed of n units.
But assuredly they do not include a tenable theory of the universe."
Basically, it would be categorizing all places by the way that the 11th edition categorized them, which seems like the best way to do it, and possibly the only tenable, self-consistent way to do it.
9) is equal to that entering at B, an assumption no longer tenable when the form changes.
It has suspected and amended its author, it has expunged his heresies; but whether it has put anything better or more tenable in their place may be gravely questioned.