Histories of the Plague, exhibiting the modifications it undergoes in different climates, must at all times and in all places be acceptable, if not to the public at large, at least to that class of persons who make the art of medicine their study and employ: But, to a country situated like our own, histories of this terrible disorder occurring in the northern parts of Europe are more particularly interesting, by holding up to our view a picture of what it probably would be, whenever it should visit us again. Such a picture is presented to us in the history of the plague which depopulated Moscow and other parts of the Russian empire, in the year 1771, and which forms the subject of the following pages. What, at the present time, must give a greater degree of interest to such a subject, is the danger to which we are exposed of importing the pestilential contagion from America[1], on the one hand, and from Turkey and the Levant on the other: For, although the cold has, happily, suppressed for the present the pestilence which has been committing such dreadful ravages at Philadelphia and New York; yet is it to be feared that it may be retained in many houses, and lie dormant in various goods, ready to break out again, whenever it shall be favoured by the weather[2]: And no one who is acquainted with the nature of that contagion can deny the possibility of its importation from America into this country, either now or hereafter, by infected persons or infected merchandise. On the other hand, are we not threatened with a similar danger from the East? In executing the hostile operations which are going forwards in the Mediterranean, it seems scarcely possible for our fleets and armies to keep clear of contagion. No nation was ever long engaged in a war with the Turks, without taking the plague. In this respect they are as much to be dreaded by their friends as their foes. If, in the present contest, Italy, and France, and England shall escape this scourge, it will form an exception to past events, which all Europe must devoutly pray for.