CONTENTS. Vii 



XIV. History of a Case of Rheumatism alternating with a trou- 

 blesome AHection of the Skin. Communicated to the Editor, by 

 Dr. Amos Gregg, Junr. 65 



XV. Sketch of the Medical Topography of the Military Tract 

 of the State of New-York. In a Letter from Dr. John H. Frisbre, 



1 fi- of Camillus, to Ddvid Hosack, M. D., of New-York. Communi- 



4 cated to the Editor, through the hands of Dr. William Currie, of 



»^ Philadelphia, by Dr. Hosack 69 



XVI. Extracts from a MS. Journal of the late Mr. James Boyd, 

 of Lancaster, in Pennsylvania. Concluded from Vol. I. Part I. 

 p. 99 86 



XVII. Miscellaneous Medical Facts. Communicated in a Let- 

 ter to the Editor, from Thomas D. Price, M. D., of Jerusalem, in 

 Virginia 87 



XVIII. Notice of the Yellow Fever, as it appeared at Philadel- 

 phia, in the year 1747 89 



XIX. A Memoir on the Treatment of the Silk- Worm. Com- 

 municated to Mr. Jefferson, President of the United-States, and of 

 the American Philosophical Society, by Mr. Robert Lowry, of 

 Siena; transmitted by Mr. JeflTerson to the Society; and by the 

 Society to the Editor of this Journal 90 



XX. Meteorological Observations made at Spring-Mill, thirteen 

 miles N. N. W. from Philadelphia, lat. 40" 4'. By Mr. Pierre 

 Legaux, Superintendant of the Plantation of the Society for pro- 

 moting the Cultivation of Vines in Pennsylvania. 100 



