'The Survey of the United Kingdom' will be the most honourable vehicle for transmitting to posterity the story of the Board's existence; for, although not yet completed, to the Board is due the credit of originating a work whose national value can hardly be over-estimated. The defensive works erected under the Ordnance already live almost in history, so rapidly has the science of fortification had to move to keep pace with the strength of attack. Their contracts showed but little favouritism, and, on the whole, were just: they included everything, from the building of forts to the manufacture of gunpowder and small arms; and, in peace and war, they reached nearly over the whole civilized world. With this extensive area came the necessity for representatives of the Board at the various stations,—who were first, and wisely, civilians, three in number; afterwards, most foolishly, owing to the increasing military element at the Board, two soldiers, the commanding officers of Artillery and Engineers, and one civilian. And as no man can serve two masters, it was soon apparent that the military members could not always serve their local General and their absent Board; discipline was not unfrequently strained; jealousy and ill-will supervened; and when the death of the Board sounded the knell of the Respective officers, as they were termed, there can be no doubt that it removed an anomaly which was also a danger. Under the new and existing system, the commanding officers of Artillery and Engineers occupy their proper places: they are now the advisers of their General, not his critics: and the door is opened for the entry of the officers of the scientific corps upon an arena where civilian traditions are unknown or powerless. Of the manufacturing departments of the Ordnance, what has to be said will come better in its place in the course of the narrative.