[The manner in which the glass rod is to be used for exciting or developing is very simple, although not easily described. The operator must provide himself with some pieces of thin board, somewhat larger than the paper intended to be used; on one of these two or three folds of blotting-paper are to be laid, and on these the paper intended to be excited, and which is to be kept steady by pins at the top and bottom right-hand corners, and the forefinger of the left hand. The operator, having ready in a small measure about thirty drops of the exciting fluid, takes the glass rod in his right hand, moves it steadily over the paper from the right hand to the left, where he keeps it, while with the left hand he pours the exciting fluid over the side of the glass rod, and moving this _to and fro_ once or twice to secure an equal portion of the exciting fluid along the whole length of the rod; he then moves the rod from left to right and back again, until he has ascertained that the whole surface is covered, taking care that none of the exciting fluid runs over the side of the paper, as it is then apt to discolour the back of it. When the whole surface has been thoroughly wetted, the superfluous fluid is to be blotted off with a piece of new blotting-paper.] * * * * * Replies to Minor Queries. _Wooden Tombs and Effigies_ (Vol. viii., p. 604.).--In addition to that mentioned by J. E. J., there is a wooden chest in the centre of the chancel of Burford Church, in the county of Salop, with a figure in plated armour on the top; the head resting on a helmet supported by two angels, and at the feet a lion crowned. An ornament of oak leaves runs round the chest, at the edge. This effigy is supposed to represent one of the Cornwall family, the ancient, but now extinct, barons of Burford. As I am preparing, with a view to publication, a history of this very ancient family, with an account of the curious and interesting monuments in Burford and other churches, I should esteem it a favour if any of your correspondents could furnish me with authentic information relative to any members of the family, or of any memorials of them in other churches than those of Worcestershire and Shropshire. J. B. WHITBORNE. _Epitaph on Politian_ (Vol. viii., p. 537.).--Harwood's _Alumni Etonenses_, A.D. 1530, Hen. VIII., p. 22.: "Edward Bovington was born at Burnham, and was buried in the chapel. Some member of the College made these lines on him: 'Unum caput tres linguas habet, (Res mira!) Bovingtonus.'" This member must have seen Politian's epitaph. J. H. L.