To this purpose I have met with a remarkable Passage in Scheffer's Description of Lapland, Chap. 28. speaking of the Cervus Rangifer, an Animal that agrees in Kind with ours, though it be a quite different Sort of Deer, he says that whole Herds of them are often destroy’d by a Raging Distemper common among them; these are his Words: Est & Morbis suis genus hoc Obnoxium qui si ingruant Gregem totum solent pervagare & ad necem dare; qua de re Johannes Bureus ita habet in Schedis suis, solet interdum Rangiferos morbus quidam velut Pestis invadere sic ut moriantur omnes Lappoq; compellatur novos sibi comparare Rangiferos (c). By (c) That is, this Kind of Creature is likewise subject to its Diseases which if they seize a Flock, goes through them all; concerning which Johannes Bureus, has it thus in his Papers; sometimes a sort of Disease after the manner of a Plague, affects the Rain Deer, so as they all dye, and the Laplander is forced to supply himself with new Rain Deer. (501) which we may see what we conjecture in our Case, is not meer Supposition, but certainly happens elsewhere to Animals of the like Kind.