The New York herald., 1871-02-23

ready 70 perform the work nc prices now In my
hands, 10 that capital can see exactly where II II
gong ana now IL is 70 be used.
Thnu-lt is much cheaper 10 build and when
Dulit can be run and kept IN repair at much less ex
quenty insures to the public cheap transit.
F0Wth-t insures the most perfect safety at any
speed ~, by the use OF subsidiary wheels and rails,
IL becomes impossible 10 get the cars from the ran,
and persons may trayel TO from and foel Uusty)
as safe as In their parors drawing rooms.
20 any street whcs ns NO wne
Deng erected, al IL all from the shop CON-
plete IN sectlens, ana put up, thus not interfering
Win any OF the ordinary business OF the city.
MI0--Once up II does not materially affect light
or ventilation; cannot be 0bstrncted by snow or ice.
or a1ecled injuriously by extreme changes or
horses
Seuenth-.Can be built with four tracks to Harlem
river In TWO years and equipped with 800 cars and
eighty dummy locomotives for 81 200 900 per mile,
ana twenty tracKmen can keep the whole plant In
repair for the first ten years.
Elghfh-Can carry 10 600 people per hour on one
road with four tracks, and can DO this at any ana all
seasons or the year.
Ninth-The plant as proposed, viii sustain with
perfect safety 1000 tons distributed eacn section
Of sixty iset, thus rendering 1t possible to carry
Tenh-In any street avenue through which the
road passes all lanpposts awning posts, telegraph
poies &c can be removed, as the columns OF the
viaduct can be used for all such purposes thus
really removing instead OF creating obstructions.
Believing that our plan the most feasible Offering
yet made, and soliciting hearing In your valuable
columns, am yours,
M. I. DAVIDSON, Engineer.
Underground Railroad Under the Sidewalk.
To THE EDITOR or THE HERALD:-
While admire your iberality I'm publishing the
many schemes or plans Tor 'rapid transit" permit
me TO lay before you one which think cneap, sub
stantal and possessing the merit OF ready construc-
tion; and as the city government serves us with
street light and water, they also ought to give tran
sit to enjoy those luxures My plan would be to
nave The sidewalk a. each side Of Broadway from
Bowling Green or City Hall tunnelled, which, by the
way is nearly SO at present. to the required DEPTH
Az Canal street use iron tubes up TO Union square
brick, lighted from top, ventilated from sde streets
and easements; entrances to depOts on the route
side streets. Take Union square centre, make a
grand circular depot, something On Vanderbilts
forty-second street plan, tDen connect with rhira
avenue; take twenty or twenty-five feet OF the rear
OF each lot up to Harlem river, build substantial
single track road. one side up and tile other down.
with wall or brick or corrugated iron III front Of
rear oi the houses up; bridge each street with stone
| or iron, and depots on side streets. From Union
square To the left, strike Ninth avenue ami run the
| same as on Third avenue, taking the same amount
OF ground for west SIDE accommodation. This would
give steam facijities for the length OF the island,
and the horse cars for shopping ana local purposes.
lf this meets your approval think l can get work
Ing drawings and Il general feature OF the plan
sketched by competent artist. i. B.