The building cost of such a project would be about neighbourhood cit Frs. 80,000,000 per kilometre, a price which does not seem. excessive if one considers its vital uses and the fact that the Government would be in complete security in time of war.
The problem of the defence of Paris is being carefully examined by the Municipal Council and huge sums of money have already been spent in this direction. The cost of gas masks for a. population of 4,200,000 comes to about Frs. 222,000,- 000, that of individual shelters to about Frs. 200,000,000, while the cost of large public shelters will reach Frs. 400,000,000.
The construction of cellars in private residences will also come to about Frs. 400,000,000, while the widening of highways to facilitate evacuation from the capital will demand a sum of Frs. 15,000,000.
Credits of Frs. 426,000,000 have already been voted for defence works.
The project of building the underground city should not be too expensive to execute, as it would partially solve Paris defence problem.—Havas.
Text read from the printed page and cleaned; old type leaves the occasional error.