those ruined cities of the East which exist but as mere lines of wrought material barring the face of the desert, there has not "been left one stone of it upon another," but of which the fragments, though widely scattered, bear imprinted upon them, like the stamped bricks of Babylon, the story of its original condition, and a record of its _founders_. All Mr. Longmuir's Cretaceous fossils from the hill of Dudwick are of flint,--a substance not easily ground down by the denuding agencies. I found several other curious fossils in Mr. Longmuir's collection. Greatly more interesting, however, than any of the specimens which it contains, is the general fact, that it should be the collection of a Free Church minister, sedulously attentive to the proper duties of his office, but who has yet found time enough to render himself an accomplished geologist; and whose week-day lectures on the science attract crowds, who receive from them, in many instances, their first knowledge of the strange revolutions of which our globe has been the subject, blent with the teachings of a wholesome theology. The present age, above all that has gone before, is peculiarly the age of physical science; and of all the physical sciences, not excepting astronomy itself, geology, though it be a fact worthy of notice, that not one of our truly accomplished geologists is an infidel, is the science of which infidelity has most largely availed itself. And as the theologian in a metaphysical age,--when skepticism, conforming to the character of the time, disseminated its doctrines in the form of nicely abstract speculations,--had, in order that the enemy might be met in his own field, to become a skilful metaphysician, he must now, in like manner, address himself to the tangibilities of natural history and geology, if he would avoid the danger and disgrace of having his flank turned by every sciolist in these walks whom he may chance to encounter. It is those identical bastions and outworks that are _now_ attacked, which must be _now_ defended; not those which were attacked some eighty or a hundred years ago. And as he who succeeds in first mixing up fresh and curious truths, either with the objections by which religion is assailed or the arguments by which it is defended, imparts to his cause all the interest which naturally attaches to these truths, and leaves to his opponent, who passes over them after him as at second hand, a subject divested of the fire-edge of novelty, I can deem Mr. Longmuir well and not unprofessionally employed, in connecting with a sound creed the picturesque marvels of one of the most popular of the sciences, and by this means introducing them to his people, linked, from the first, with right associations. According to the old fiction, the look of the basilisk did not kill unless the creature saw before it was seen;--its mere _return_ glance was harmless; and there is a class of thoroughly dangerous writers who in this respect resemble the basilisk. It is