There are a number of web sites on the glass armonica (note
the spelling) which you can find by doing a web search under the
term "armonica." One of the more comprehensive sites is
I hope the inquirer does not think that the glass armonica is a
mouth organ made of glass. It is not.
[ Jan Kijlstra reported in MMD 970907 that early descriptions
[ of glass harmonicas go back to 1677, almost 100 years before Ben
[ Franklin built his "armonica". Most dictionaries and reference
[ books on musical instruments call it the "glass harmonica".
[ (I haven't discovered yet why Franklin dropped the "h".) Much
[ historical information is already available at the MMD Archives:
[ http://mmd.foxtail.com/Archives/KWIC/G/glass.html -- Robbie