Experiments and observations on digestion: an inaugural essay, for the degree of Doctor of Medicine : submitted to the examination of the Rev. John Andrews ... the Trustees and medical professors of the University of Pennsylvania, on the eighth day of June, 1803

Experiments and observations on digestion: an inaugural essay, for the degree of Doctor of Medicine : submitted to the examination of the Rev. John Andrews ... the Trustees and medical professors of the University of Pennsylvania, on the eighth day of June, 1803