author
Known only by the brief bibliographic name “A. Mitra,” this elusive 19th-century writer is remembered for a detailed study of plague at a moment when epidemic disease was a major public health threat. The surviving record points to a practical, research-minded author interested in how illness spread and how it might be controlled.

by active 19th century A. Mitra
Very little can be confirmed about this author beyond the name attached to The Bubonic Plague. In major public-domain catalog records, the writer is listed simply as "Mitra, A., active 19th century," which suggests that basic biographical details such as full name and life dates are no longer firmly established.
The work most clearly associated with A. Mitra is The Bubonic Plague, a late-19th-century medical treatise. The book surveys the history, symptoms, diagnosis, treatment, and prevention of plague, and it also discusses sanitation, hygiene, and the bacteriological understanding of the disease.
That surviving book gives the clearest sense of the author’s interests: careful explanation, public health concerns, and a strong focus on epidemic disease in its historical and scientific context. While the person behind the name remains obscure, the work itself preserves a useful snapshot of how plague was being studied and explained in that era.