... The following is an Ex trail ff a letter written by Broulfonet, fent into Africa by the National Inftitafe at Paris, dated Mogadore, and addrefled to Ciiaen L'Heritier, «• The plague, my dear friend, fur- rounds us ; and what a plague may it be con_i___ed ! —■Already the population of feveral large towns has difappeared. At Morocco eighteen hundred ptrfons have died in one day. The dead oodics ...