ess may have been made in tell- wires may be varied. tive or instructive than those connected with the sub- ing what paper is, we have yet no correct explanation The wire at its mid-length passes around a small ject of sound. The experiments of M. Lissajous are sheave in the other post, so that as… … Fig. 1.-SIHFLE AFFASAT1TS FOB FBODTTCING LISSAJOUS' FIOTTBES. become softer, but recover that The mirrors employed in the con- quality again in drying. In the struction of this instrument are the moistened state the ductile fibers, aided by the shak- the tension of its two branches will be…