If this edition of Medical Inquiries and Observations should be less imperfect than the former, the reader is requested to ascribe it to the author having profited by the objections he encouraged his pupils to make to his principles, in their inaugural dissertations, and in conversation; and to the many useful facts which have been communicated to him by his medical brethren, whose names have been mentioned in the course of the work. For the departure, in the modes of practice adopted or recommended in these Inquiries, from those which time and experience have sanctioned, in European and in East and West-Indian countries, the author makes the same defence of himself, that Dr. Baglivi made, near a century ago, of his modes of practice in Rome. "_Vivo et scribo in aere Romano_," said that illustrious physician. The author has lived and written in the climate of Pennsylvania, and in the city of Philadelphia. _November 18th, 1805._ * * * * * CONTENTS OF VOLUME I. _page_ _An inquiry into the natural history of medicine among the Indians of North-America, and a comparative view of their diseases and remedies with those of civilized nations_ 1 _An account of the climate of Pennsylvania, and its influence upon the human body_ 69 _An account of the bilious remitting fever, as it appeared in Philadelphia in the summer and autumn of the year 1780_ 115 _An account of the scarlatina anginosa, as it appeared in Philadelphia in the years 1783 and 1784_ 135 _An inquiry into the cause and cure of the cholera infantum_ 153 _Observations on the cynanche trachealis_ 167 _An account of the efficacy of blisters and bleeding, in the cure of obstinate intermitting fevers_ 177 _An account of the disease occasioned by drinking cold water in warm weather, and the method of curing it_ 181 _An account of the efficacy of common salt in the cure of hæmoptysis_ 189 _Thoughts on the cause and cure of pulmonary consumption_ 197 _Observations upon worms in the alimentary canal, and upon anthelmintic medicines_ 215 _An account of the external use of arsenic in the cure of cancers_ 235 _Observations on the tetanus_ 245 _The result of observations made upon the diseases which occurred in the military hospitals of the United States, during the revolutionary war_ 267