When I was a boy I made an occasional invasion of my father's study, and in the absence of more congenial matter tried to extract some amusement from the shelves devoted to Christian apologetics. At any rate the pictures of the portly divines, which sometimes prefaced their polemics, interested me, and I was sometimes allured to read a few pages of their scripture. I remember that I enjoyed the sub-acid flavour of Bishop Butler's advertisement, prefixed to the First Edition of his Analogy, at an early age, and I have thought lately that in certain circles one hundred and seventy years have not greatly modified the mental attitude.