Thus all the preceding experiment from the stroke of the bow to the final noise presents itself to us in visual terms, and further, these terms are not confined to a series of detached sensations.
Visual sensation combines with the tactile and muscular sensations, and forms sensorial constructions which succeed each, other, continue, and arrange themselves logically: in lieu of sensations, there are objects and relations of space between these objects, and the actions which connect them, and the phenomena which pass from one to the other.

All that is only sensation, if you will; but merely as the agglutinated molecules of cement and of stone are a palace.
Thus the whole series of visual events which compose our experiment with the tuning-fork can be coherently explained.

One understands that It is the movement of my hand equipped with the bow which is communicated to the tuning-fork.

One understands that this movement passing into the fork has changed its form and rhythm, that the waves produced by the fork transmit themselves, by the oscillations of the air-molecules, to our tympanum, and so on.

There is in all this series of experiments an admirable continuity which fully satisfies our minds.