Corrections [to "The Piezo-Electric Resonator," by W.G. Cady, ibid. April, 1922, pp 83]

In the paper on "The Piezo-Electric Resonator," by W.G. Cady, which appeared in the April, 1922 issue of the PROCEEDINGS, page 83, the following corrections should be made: Page 87, equation (6), for y read yy; Page 97, third line from the bottom, for "low" read "high;" Page 98, first line, for "lead" read "lag;" Page 98, line 22, for X read x; Page 106, line 2 from bottom, several changes are noted.