AN 



INAUGURAL DISSERTATION, 



ENTITLED, 



OBSERVATIONS 



ON THE 



STRUCTURE AND HABITS 



OF THE 



LUMBRICUS TER'RESTRIS; 



AND 



A CHEMICO-PHYSIOLOGICAL ENQUIRY 

 ON ITS RESPIRATION. 



SUBMITTED TO THE EXAMINATION 



OF THE REV. JOHN ANDREWS, VICE-PROVOST, THE 

 TRUSTEES AND MEDICAL FACULTY OF THE 



UNIVERSITY OF PENNSYLVANIA, 



FOR THE DEGREE OF 



DOCTOR OF MEDICINE, 



ON THE 



TWENTY-FIRST DAY OF APRIL, 1806. 



BY ENOCH A. GREEN, A. M. 



OF TRENTON, NEW-JERSEY. 



PHILADELPHIA .• 

 PRINTED rOR THE AUTHOR. 



