diameter is 227 ft., or rather more than double, giving only five miles
per hour velocity, it follows that the power for this portion would be
eight times less. That for the working tunnels would be practically the
same, the velocities being nearly alike in both cases, which would be
about 21/2 miles per hour--the 30 ft. having an area of 470 ft., the
two single ones together about 450 ft. Upon the face of it the system
deserves a trial. A full consideration of the scheme by engineers
preparing plans for new tunnels would no doubt throw further light
upon the subject and be of interest wherever such work is
contemplated.--_Contract Journal_.
* * * * *
MONT ST. MICHEL.
Every one who has the slightest regard for historical monuments, who
values mediaeval architecture, or cares in the least degree for the
beautiful and the picturesque, must heartily sympathize with M. Victor
Hugo in his protest against the proposed scheme for uniting the
wonderful island of Mont St.
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