Die unregelmässige Herztätigkeit und ihre klinische Bedeutung.

Wenckebach was the first to demonstrate (pp. 173-75) the value of quinine (“Wenckebach’s pills”) in the treatment of paroxysmal fibrillation. The same work contains a number of excellent descriptions of various forms of cardiac arrythmia. The second edition, written in co-operation with Heinrich Winterberg, was expanded to 2 vols, Leipzig, Engelmann, 1927.