Sometimes more than one draughtsman is employed on a drawing where the subject consists of figures and landscape, or figures and architecture. In such a case, if time presses, the two parts of the drawing are proceeded with simultaneously. The whole design is first traced on the block; the bolts at the back of the block are then loosened, the parts are separated, and the figure-draughtsman sets to work on his division of the block, while another draughtsman is busied with the landscape or architecture, as the case may be. Occasionally, when there is very great hurry, the block is separated piece by piece as fast as the parts of the drawing are finished--the engraver and draughtsman thus working on the same subject at the same time. Instances have occurred where the draughtsman has done his work in this way, and has never seen the whole of his drawing together. The double-page engraving of the marriage of the Prince of Wales in the _Illustrated London News_, March 21, 1863, was drawn on the wood by Sir John Gilbert at 198 Strand, and as fast as each part of the drawing was done it was separated from the rest and given to the engraver. Considering that the artist never saw his drawing entire, it is wonderful to find the engraving so harmonious and effective. Photographing on the wood is now in general use for portraits, sculpture, architecture, and other subjects where there is a picture or finished drawing on paper to work from. The drawing on wood being completed, it passes into the hands of the engraver, and the first thing he does is to cut or set the lines across all the joins of the block before the different parts are distributed among the various engravers. This is done partly to ensure as far as possible some degree of harmony of colour and texture throughout the subject. When all the parts are separated and placed in the hands of different engravers each man has thus a sort of _key-note_ to guide him in the execution of his portion, and it should be his business to imitate and follow with care the colour and texture of the small pieces of engraving which he finds already done at the edge of his part of the block where it joins the rest of the design. The accompanying cuts represent a block entire and the same subject divided. [Illustration: A BLOCK BEFORE IT IS TAKEN TO PIECES.] [Illustration: THE SAME SUBJECT DIVIDED.]