In the March 17, 1894, number of this JOURNAL, John A. Sterling, Esq., ably treats "The Medical Expert Witness," On page 378, column 2, line 46, he writes: "If it were possible to have a jury of twelve medical men in all cases where medical evidence is required, then the medical expert would be unnecessary." I think not, but that he would be needed more than under our present American system of medical jurisprudence, which for more than a generation has been an opprobrium medicoram. This opprobrium can not be changed because the bar does not want it. Well do I remember the efforts made some thirty years ago to change this system, which were led by my late honored and honorable teacher, Prof. R. E. Rogers of the University of Pennsylvania. Probably there never was a more eloquent lecturer in a medical college. He made the dry subject of