An inaugural essay on hydrocephalus internus : Submitted to the examination of the Rev. John Andrews, D.D. Provost, (pro tem.) the trustees and medical professors of the University of Pennsylvania, on the 21st day of April, 1806; for the degree of Doctor of Medicine / By Jacob David Wacker, of Swabia. ...
- Philadelphia : Printed for the author, by John H. Oswald, 1806.
19,  p. ; 21 cm. (8vo)