ii n ii I
11502. Geography.-We are looking over the
east Chamber of one of the Gatun Locks. Behind us
seven miles is the Atlantic entrance to the canal in
S Limon Bay.
Construction.-Transportation.-Here, as at the Pa-
cific end, the locks are arranged in parallel pairs-one
side for Pacific-going vessels and the opposite for
Atlantic-bound ships. A ship is lifted or lowered three
times in Gatun Locks-the flights being continuous and
not separated as at the 'Pacific end. In this 1.000 foot
lock, as in any other of the twelve of the series the
greatest leviathan of a boat could safely dock. Into.
this-triple flight the combined lift. of which is 85 feet,
2,000,000 cubic yards of concrete were built.
Op ;,' i'u.-One man in a power building on top, of
'the i":!~, with a view of every part of them, will di-
rect ti-: passage of vessels, with *hle aid of a complete
replica of -he locks, 64 by 5 feet, before him. On it
will be i.uwn the exact position of every valve and
The gates are operated by great steel arms, weighing
five tons. We see one of these arms at the top of the
left leaf of the guard gate, just below the foot-bridge.
It passes beneath the surface of the side wall of the
lock to connect with an electrically-operated gear wheel. I
The square holes we see four feet below the top of
the gate are to enable water to circulate through the
upper portion of the gates and so prevent their rising
when the water surface is at the 87-foot level.
At the left we see one of the concrete electric range
lights which are scattered all along the canal route,
except in Culebra Cutit here beacons arc to be used.
East chamber, of ,Ghafn. kLock -after filling, Panama;..
Chahfire de 'st~ .de I'ecnise :de Gatun'apr s qu'elle est
rempljec, Panhai ma- .b ,.,' .. : .e
Ost. Kammer der. atun Sehluse nach- -dem Fiillen ,
Camara Este de la compuerta Gatun,
Ostra bassaingen af Gatunslussen, efter den fylts,
BocToTaai Kaqaepa PaTyHn aro HIoIa ioanocji Harnoienia,