Sunday Washington globe., 1902-01-05

has Just perfected consists Of a square
chart on the one hand and a specially de-
signed map Of the Pacific Ocean ON the
other The map itself is divided from top
to bottom with vertical lines representing
longitudinal divisions, while from the port
Of San Francisco to Manila, across the
map, is traced a route line, showing the
course that will be followed by ships, once
they begin TO sail under the new regula-
tions
The chart is square in form, divided
from higher to lower edge, by lines drawn
TO correspond to the longitudinal divisions
on the map. From side to side horizontal
lines are drawn at regular intervals and
numbered at their ends consecudvely to
represent the days of the year Each square
chart is drawn to represent sixty days-a
sufficient time to allow for the passage of
the slowest ship in the service. AT each
end of every day line a peg is driven
through the chart into the board upon
which the chart is mounted.
The vertical line from top to bottom, at
the extreme right-hand edge of the chart,
is taken to represent the longitudinal posi-
ton Of San Francisco and is numbered to
correspond to the longitudinal line inter
secting San Francisco on the map. The
left-hand edge Of the chart represents the
longitudinal positions of the Japanese,
Chinese and Philippine ports. The island
ports between San Francisco and our
Oriental possessions are named along the
top of the chart at the lines which eorre-
spoud to the lines of longitude intersecting
them on the map. There are, of course,
III E A.
stopping at the Hawaiian Islands and for
the change of date at the international date
line, but that does not need to be described
in general explanation of the working of
General Longs invention.
In actual practice, to ascertain the posi-
tion of a ship you have but to note the day
she sailed, the schedule length of her voy-
age, and you can put your pencil at once on
the point in the ocean where she is. Sup
posing your ship sailed from San Francisco
on December Ist for Manila and that her
scheduled steaming time is equal to that of
the Grant-23 days. Firstly attach piece
Of guiding tape to the peg at December T.,
on the right hanG edge of the chart then
count down "a pegs, each one of which rep
resents day ssaihng, and you have reached
December %, the date of the ships arrival
at Manila. Follow the date line across the
chart until you come to the longitudinal
line on the left-hand edge of the chart rep.
resenting the position of Manila. To the
positiOn-peg there driven attach your guild
ing tape and draw it taut
Next follow upward along the tape until
you reach the point of intersection of the
tape and the date line-say the ISth--you
are looking for You will find that the tape
and December IS intersect at longitudinal
line I6S degrees east Now turn to your
map and follow the corresponding line to
its point Of intersection with the established
route line. You have at that point the ex-
act position Of your ship.
Speaking of the time when he hopes to
see the full proposed system established
General Long said. 1t may be between
six months and year; not more, I'm sure.
Why should it be so2 England is rapidly,
though quietly, equippiug her squadrons.
France, Germany Italy and even Russia
are doing the same. Why should not wel
The time has come to be up and doing, and
a twelvemonth promise you will see US
at it, at the foremost front"