Note 19 — Some Epidemics of Social Importance
Reading edition
Probably Mus Rattus, the black rat, at that time. Mus decumanus, the brown rat, does not seem to have begun to conquer the black rat till the eighteenth century.
Reading edition
Probably Mus Rattus, the black rat, at that time. Mus decumanus, the brown rat, does not seem to have begun to conquer the black rat till the eighteenth century.