of the original, and the light reflected from the form and features accomplished the rest. Were that sketch in brown to be sent to a skilful engraver, he would render it the groundwork of by far the most faithful print which the public has yet seen. And how interesting to have bound up with the writings of this distinguished divine, not a mere print in which there might be deviations from the truth, but the calotype drawing itself! In some future book sale, copies of the _Astronomical Discourses_ with calotype heads of the author prefixed, may be found to bear very high prices indeed. An autograph of Shakespeare has been sold of late for considerably more than an hundred guineas. What price would some early edition of his works bear, with his likeness in calotype fronting the title? Corporations and colleges, nay, courts and governments, would outbid one another in the purchase. Or what would we not give to be permitted to look even on a copy of the _Paradise Lost_ with a calotype portrait of the poet in front--serenely placid in blindness and adversity, solacing himself, with upturned though sightless eyes, amid the sublime visions of the ideal world? How deep the interest which would attach to a copy of Clarendon's _History of the Civil War_, with calotypes of all the more remarkable personages who figured in that very remarkable time--Charles, Cromwell, Laud, Henderson, Hampden, Strafford, Falkland, and Selden,--and with these the Wallers and Miltons and Cowleys, their contemporaries and coadjutors! The history of the Reform Bill could still be illustrated after this manner; so also could the history of Roman Catholic Emancipation in Ireland, and the history of our Church Question in Scotland. Even in this department--the department of historic illustrations--we anticipate much and interesting employment for the photographer.