About forty years ago the idea established itself that epilepsy, exhibiting itself in one form or another as "fits," and migraine, the severe periodic sick headache, were Interconvertible manifestations of the same underlying morbid process in the brain.
"The Glands Regulating Personality"
Louis Berman, M.D.
Manhood and brass buttons were with her Interconvertible terms, and the idea of uniting her young life to a plain civilian seemed to her nothing less than shocking.
"Captain Jinks, Hero"
Ernest Crosby
The primary objects of the labor reformers were, it appears, to lower the rate of interest on money and to reduce taxation by the transformation of the war debt into Interconvertible bonds.
"The Agrarian Crusade A Chronicle of the Farmer in Politics"
Solon J. Buck