Let me also add, that the plate in the _Dictionnaire_ gives the field of this half as argent. Mr. Willement, in his _Regal Heraldry_, under the arms of Richard II.'s consort, also thus describes and represents the imperial field; and Nisbett alludes to it as such in one place, though in his formal blazon he gives it as _or_. Nothing, in an heraldic point of view, would be more interesting than a "Regal Heraldry of Europe," with a commentary explaining the historical origin and combinations of the various bearings. Should this small contribution towards such a compilation tend to call the attention of any able antiquary to the general subject, or to elicit information upon this particular question, the writer who now offers so insignificant an item would feel peculiarly gratified. L. C. D. * * * * * PHOTOGRAPHIC CORRESPONDENCE. _Multiplying Negatives._--In reply to M. N. S. (Vol. ix., p. 83.) I would suggest the following mode of multiplying negatives on glass, which I have every reason to believe would be perfectly successful:--First, _varnish_ the negative to be copied by means of DR. DIAMOND'S solution of amber in chloroform; then attach to each angle, with any convenient varnish, a small piece of writing-paper. Prepare a similar plate of glass with collodion, and drain off all superfluous nitrate of silver, by standing it for a minute or so on edge upon a piece of blotting-paper. Lay it flat upon a board, collodion side upwards, and the negative prepared above upon it, collodion side downwards. Expose the whole to daylight for a single second, or to gas-light for about a minute, and develope as usual. The result will be a _transmitted positive_, but with reversed sides; and from this, when varnished and treated as the original negative, any number of negatives similar to the first may be produced. The paper at the angles is to prevent the _absolute_ contact and consequent injury by the solution of nitrate of silver; and, for the same reason, it is advisable not to attempt to print until the primary negative is varnished, as, with all one's care, sometimes the nitrate will come in contact and produce spots, if the varnishing has been omitted. Should the negative become moistened, it should be _at once_ washed with a gentle stream of water and dried. I have repeatedly performed the operation above described so far as the production of the positive, and so perfect is the impression that I see no reason why the second negative should be at all distinguishable from the original. I am, indeed, at present engaged upon a _similar_ attempt; but there are several other difficulties in my way: I, however, entertain no doubts of perfect success. GEO. SHADBOLT.