MY DEAR LUCY:

The graphophone is an improved phonograph, the cylinder being of hard
rubber instead of wax.

The phonograph was invented by Thomas A. Edison in 1877, and improved by
him about 1889.

It operates by means of a thin diaphragm set in vibration by the voice or
any other sound. It bears a stylus which records the vibration, on a
rotating, wax-coated cylinder, in a faint wavy line.

This line is sufficient, however, to guide the stylus over the same course
again, and agitate the diaphragm into reproducing waves of sound, similar
to those originally recorded.


The Editor is very much obliged to Dallas S. for his pleasant letter.
EDITOR.



In reply to Mrs. C.H. Parkhurst, we suggest that a letter of inquiry to
Mr. Ford will be the speediest way to ascertain where the combination tool
can be procured. EDITOR.


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