Ill 



Communicated to the Editor, by the Reverend Mr. Charles 

 Reichel, of Nazareth. With Remarks, by the Editor. 



XVI. Additional Observations on the Cicada Septendecim. By 

 the late Mr. John Bartram. From a MS. in the possession of 

 the Editor. With a Note, by the Editor. 



XVII. Memorandums concerning the Earthquakes of North- 

 America. By the Editor. With a Supplement, by Mr. John 

 Bartram. 



XVIII. Observations on the Power of Habit in Vegetables. In 

 a letter to the Editor, from William Barnwell, M. D. With 

 Notes, by the Editor. 



XIX. Notice of the Travels of a Mohawk-Indian. By the Editor. 



XX. Some Account of the Disease called the Hollow-Horn. By 

 the Editor. 



XXI. On the Salivating Effects of Digitalis Purpurea, or Com- 

 mon Foxglove. In a letter from Dr. Mahlon Gregg, to Dr. 

 Thomas Walmsley. Communicated by the latter to the Edi- 

 tor. With Additions, by the Editor. 



XXII. Hints relative to the External Employment of the Leaves 

 of the Liriodendron Tulipifera, or Tulip-tree, in cases of Gout 

 and Rheumatism. By the Editor. 



XXIII. On the Use of Plaster of Paris (different varieties of Gyp- 

 sum, or Sulphate of lime) as a manure, in Virginia. In a let- 

 ter to the Editor, from his brother, Mr. Richard P. Barton, of 

 Frederick-County, Virginia. 



XXIV. Facts relative to the Food of the Humming-Bird. By 

 the Editor. 



XXV. Anecdotes of an American Crow. By William Bartram. 



