PREFACE. 



ALTHOUGH the present number of the Philadeljihia 

 Medical and Physical Journal has been delayed a few weeks be- 

 yond the period at which it ought to have made its appearance, 

 yet that delay has not originated, in any degree, from the defi- 

 ciency of matter or materials. This is so far from being the 

 case, that a number of original papers, and some of them impor- 

 tant ones, that have been in my hands for several months, have 

 been unavoidably deferred for future parts of this work. Some 

 of these papers are here mentioned, under their respective heads. 



MEDICINE. 



1. On the disease of Cholera Morbus, &c., in the West-Indies. 



2. On the origin of the Venereal disease, proving it to have ex- 

 isted in Europe several centuries before the discovery of Ame- 

 rica, v^ 



3. Additional Observations on the disease of Goitre, or Broncho- 

 cele. 



4. On the Venom of several American species of Serpents, such 

 as the Moccasinj &c. 



5. On the poisonous effects of the Hyoscyamus niger, or Black 

 Henbane. 



6. On the medical properties of the Collinsonia canadensis, and 

 other species of this genus. 



