Page:Shaving Made Easy 1905.djvu/27

 The edge of a razor, when viewed under a powerful microscope, presents an appearance very different from that seen by the unaided eye. Unmagnified, the edge appears to be a continuous unbroken line. Such actually is not the case, for the microscope reveals the fact that, instead of being straight and unbroken, the edge is in reality composed of a great number of minute points much resembling the teeth of a saw.

These points or teeth follow each other throughout the entire length of the blade, and by their extreme minuteness