this last subject he was perfectly willing to expound upon , and patiently engaged mrs. warren in a rather horrifying discussion of various points raised in sir george somebody-or-others treatise on bath waters ( which inspired me with a strong desire not even to touch the glass which held mine , let alone drink its contents ) , and listened attentively to several of her favorite stories of those who had been converted to the praise of bath waters , even after being disillusioned by those supposedly possessing a greater quantity of virtuous minerals .