"It was first necessary to render the surface even: to effect this, a gauze was pasted on the painting, and the picture was turned on its face. After that, Citizen HACQUINS made, in the thickness of the wood, several grooves at some distance from each other, and extending from the upper extremity of the bend to the place where the pannel presented a more level surface. Into these grooves he introduced little wooden wedges; he then covered the whole surface with wet cloths, which he took care to remoisten. The action of the wedges, which swelled by the moisture against the softened pannel, compelled the latter to resume its primitive form: both edges of the crack before-mentioned being brought together, the artist had recourse to glue, in order to unite the two separated parts. During the desiccation, he laid oak bars across the picture, for the purpose of keeping the pannel in the form which he wished it to assume." "The desiccation being effected slowly, the artist applied a second gauze on the first, then successively two thicknesses of grey blotting paper." "This preparation (which the French artists call _cartonnage_) being dry, he laid the picture with its face downward on a table, to which he carefully confined it; he next proceeded to the separation of the wood on which the painting was fixed." "The first operation was executed by means of two saws, one of which acted perpendicularly; and the other, horizontally: the work of the two saws being terminated, the pannel was found to be reduced to the thickness of 4-1/2 lines. The artist then made use of a plane of a convex form on its breadth: with this instrument he planed the pannel in an oblique direction, in order to take off very short shavings, and to avoid the grain of the wood: by these means he reduced the pannel to 2/3 of a line in thickness. He then took a flat plane with a toothed iron, whose effect is much like that of a rasp which reduces wood into dust: in this manner he contrived to leave the pannel no thicker than a sheet of paper." "In that state, the wood was successively moistened with clear water, in small compartments, which disposed it to detach itself: then the artist separated it with the rounded point of a knife-blade." "The picture, thus deprived of all the wood, presented to the eye every symptom of the injury which it had sustained. It had formerly been repaired; and, in order to fasten again the parts which threatened to fall off, recourse had been had to oils and varnishes. But those ingredients passing through the intervals left by such parts of the picture as were reduced to curling scales, had been extended in the impression to the paste, on which the painting rested, and had rendered the real restoration more difficult, without producing the advantageous effect which had thence been expected."