Tracing Transferred

Tracing Transferred – The tracing will now be found to be more or less faintly transferred to the pen-paper. If necessary, the transferred tracing may be touched up here and. there, where a greater definition seems necessary to guide the pen.

Preserve Tracings – The tracing paper after use need no. be discarded, for it may be used several times, although after each transfer the “offset” will become more and more dim. Greater pressure is required then, and the lines on the tracing paper may have to be strengthened. By preserving tracings, subsequent impressions become available in case the first drawing in pen-and-ink is unsatisfactory, or in case one desires to work up the same theme in a different style of treatment.

Transfer from Opaque Paper – Whenever necessary to make a transfer from a piece of paper that is not transparent, the reverse drawing (the lines which make the offset) can be made by placing the paper against a window pane, which will cause the paper to appear transparent, when the lines may be traced.

Interesting and Practical Experiment – When it is necessary to make the transfer in contact with any certain part of the drawing this can be accomplished by placing the paper near the desired place and then rapidly lifting and lowering the transfer until the part on the transfer and the part on the drawing underneath appear as one. The phenomenon is similar to the principle on which moving pictures are based.

To illustrate the experiment make the drawing A in Fig. I.
Then another drawing B, which place over A. Then move up and down very quickly, as indicated in Fig. 2. in the directions as shown by the arrows E and F. Bring C towards you from D sufficiently far that the eye may see A as well as B. If moved with sufficient speed, A and B will appear as they do at the left of Fig. 3.