own sake? Is the Vicar of Christ bound by office or by vow to be the preacher of the theory of gravitation, or a martyr for electro-magnetism? Would he be acquitting himself of the dispensation committed to him if he were smitten with an abstract love of these matters, however true, or beautiful, or ingenious, or useful? Or rather, does he not contemplate such achievements of the intellect, as far as he contemplates them, solely and simply in their relation to the interests of Revealed Truth? Surely,