ELEMENTS OF PHYSIOLOGY. BY J. MULLES, M.D. FROFESSOR OF ANATOMY AND PHYSIOLOGY IN THE UNIVERSITY OF BERLIN, ETC. TRANSLATED FROM THE GERMAN, BY WM. BALY, M.D. GRADUATE IN MEDICINE OF THE UNIVERSITY OF BERLIN. ARRANGED FROM THE SECOND LONDON EDITION, BY JOHN BELL, M.D. LECTURER ON MATERTA MEDICA AND THERAPEUTICS, AND FORMERLY ON THE INSTITUTES OF MEDICINE AND MEDICAL JURISPRUDENCE, &C. PHILADELPHIA : LEA AND BLANCHARD. 1843.