Definition of insalubrity:
See Third Anual Report of Massachusetts State Board of Health for 1873. The causes and remedies of the insalubrity of Rome and its environs have been for some time the object of careful investigation, and many valuable reports have been published on the subject.- "The Earth as Modified by Human Action", George P. Marsh.
Originally situated beyond the walls of the town, it had in due course been so surrounded by the growing metropolis as to render it impossible to continue its use as a cemetery, and in 1784 the practice of burying therein was discontinued, the accumulated bones of Parisians were removed thence with great precaution, on account of the insalubrity of the operation, and they were deposited in the old quarries, and the catacombs were solemnly consecrated for their reception by the Archbishop of Paris on 7th April 1787. A public market- place was then established on the site of the former cemetery.- "Castles and Cave Dwellings of Europe", Sabine Baring-Gould.
- "Rambles and Recollections of an Indian Official", William Sleeman.