be called upon to deal with so agitating emergency. It was, indeed, somewhat consoling to him to reflect that he was not expected to acquire ancient MSS. for his institution; that was the business of the Shelburnian Library. The authorities of that institution might, if they pleased, ransack obscure corners of the Continent for such matters. He was glad to be obliged at the moment to confine his attention to enlarging the already unsurpassed collection of English topographical drawings and engravings possessed by his museum. Yet, as it turned out, even a department so homely and familiar as this may have its dark corners and to one of these Mr. Williams was expectedly introduced.
Those who have taken even the most limited interest in the acquisition of topographical pictures are aware that there is one London dealer whose aid is indispensable to their researches. Mr. J. W. Britnell publishes at short intervals very admirable catalogues of a large and constantly changing stock of, engravings, plans, and old sketches of man-
