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passage on board some other vessel bound to
the port from which he was originally shipped,
or to the most convenient port of entry in the
United States, or to a port agreed to by the
seaman, and the seaman shall have a lien on
the vessel to compel compliance with the
order of the judge, who shall have authority
to issue all writs necessary to enforce his
jurisdiction; and the judge shall cause to be
entered upon the crew list and shipping
articles and official log the cause of discharge
and the particulars in which the cruel or
unusual treatment consisted, and shall cause
his name to be subscribed thereto officially,
and shall cause the entry made in the official
log to be read to the master. The latter's
reply thereto, if any, shall likewise be caused
to be entered and subscribed in the same
manner.

3. If any consul or vice-consul of any
foreign government, who is commissioned to
the government of the Republic of Panama
and is recognized by the United States in the
Canal Zone, such foreign government having
a treaty with the United States, or with the
Republic of Panama, stipulating for the res-
toration of seamen deserting, shall make
application in writing stating that the person
therein named has deserted from a vessel of
any such government while in any port of the
Canal Zone, and shall furnish proof by the
exhibition of the register of the vessel, ship's
roll, or other official document, that the per-



son named belonged, at the time of the
desertion, to the crew of such vessel, it shall
be the duty of any judge of any Circuit Court
of the Canal Zone, to issue warrants to cause
such person to be arrested for examination.
If, on examination, the facts stated are found
to be true, the person arrested, not being a
citizen of the United States, or of the Republic
of Panama, shall be delivered up to the consul
or vice-consul, to be sent back to the domin-
ions of any such government, or, on the
request and at the expense of the consul or
vice-consul, shall be detained until the consul
or vice-consul finds an opportunity to send
him back to the dominions of any such gov-
ernment. No person so arrested shall be
detained more than two months after his
arrest, but at the end of that time shall be
set at liberty, and shall not be again molested
for the same cause. If any such deserter shall
be found to have committed any crime or
offense, his surrender may be delayed until
the tribunal before which the case shall be
pending, or may be cognizable, shall have
pronounced its sentence, and such sentence
shall have been carried into effect.

4. This Order shall take effect from and
after this date. Wm. H. Taft.

The White House, May 6, 1911.
[No. 1348.]



ORDINANCE



Prohibiting Hunting and Other Trespassing Upon
Reservoirs and Watersheds of the Canal Zone.

Be it ordained by the Isthmian Canal Com-
mission:

Section 1. It shall be unlawful for any per-
son to hunt on any of the reservoirs of the
Canal Zone, from which water is drawn for
the use of the inhabitants of any city, muni-
cipality, district or settlement or on any of
the established watersheds of any such reser-
voirs; and no person except under authority
of the Isthmian Canal Commission or the
Panama Railroad Company, shall enter upon
any of said reservoirs or watersheds for any
purpose.

Section 2. Any person who violates any
of the provisions of this ordinance shall be
deemed guilty of a misdemeanor, and shall
be punished as prescribed by Section 16 of
the Penal Code.

Section 3. This ordinance shall take effect
30 days after its approval by the Secretary
of War. Respectfully,

Geo. W. Goethals, Chairman.

Approved: J. M. Dickinson,
Secretary of War.

April 26. 1911.



Mosquito Pests.

Concerning the unusual number of mos-
quitoes infesting the Canal Zone at the present
time, a report has been made to the Sanitary
Department by Mr. A. H. Jennings, Ento-
mologist, which contains, among others, the
following statements:

The great bulk of these mosquitoes are of a
very widely distributed and annoying species
Aedes taeniorhynchus ol Weidman. The species
is not infrequently mistaken for Stegomyia,
to which it has a superficial resemblance,
being dark in color with white banded abdo-
men and legs.

Its eggs are laid upon the mud at the mar-
gin of ponds and marshes, or at the bottom
of puddles from which the water has evap-
orated. They must become dry before
hatching, and in this condition retain their



vitality for months. The first rains cause the
eggs to hatch, and successive rains at short
intervals develop the larva? into enormous
numbers of viciously biting mosquitoes. The
ordinary methods of control are manifestly
inadequate to suppress breeding under such
conditions. Clearing away of brush in the
neighborhood of settlements is the only
effective method of preventing this phase in
the breeding of the species, but as this
mosquito is capable of prolonged flight and
its invasions here usually of limited duration,
the clearing of such areas, as would in most
cases be necessary, is not justified.

The activity of this mosquito in past
seasons has been confined to about two
months, including the latter part of April
and extending into June. The unusual num-
ber this year is attributed to the very favor-
able conditions created by the very intense
dry season ending somewhat abruptly in
regularly recurring rains. So far as medical
knowledge goes, this mosquito is not a trans-
mitter of disease.



Masonic Temple Corner Stone Laying.

The corner stone of the new Masonic
Temple at the corner of Eleventh and Bolivar
streets, Cristobal, will be laid on May 30, at
2 p. m. A special train will cross the Isthmus
for the convenience of Masons and their
friends. The schedule is, as follows: Leave
Panama, 11 a. m.; Corozal, 11:07; Pedro Mi-
guel, 11:18; Paraiso Junction, 11:21; Culebra,
11:24; Empire, 11:40; Las Cascadas, 11:46;
Bas Obispo, 11:51; Gorgona, 12.02 p. m.;
San Pablo, 12:12; Tabernilla, 12:18; Bohio,
12:30; Gatun, 12:47; arrive Colon, 1 p. m.

Tickets will be necessary for transportation
on this train, and can be secured from mem-
bers of Sojourners Lodge, or from the com-
mittee. Masons will meet at the lodge room,
Fifth and Bolivar streets, at 1.30 p. m., and
march to the building, headed by the U. S.
Marine Band.



Observance of Memorial Day.

Empire Company, No. 2, U. R. K. of P., will
turn out on Decoration Day, May 30, to
observe with fitting ceremony the day set
aside for the purpose of paying tribute to our
dead. We also invite any member of the
Uniform Rank on the Isthmus to participate
with us. Fraternally yours,

C. Peters, Recording Sergeant.

Empire. C. Z., May 15, 1911.



Chaplain C. O. Purdy, U. S. W. V., will
conduct Memorial Day services in Gatun
chapel, Sunday evening. May 28, at 7:45
p. m. The United Spanish War Veterans will
attend in a body. The public is invited.

S. A. Clark. Adjutant.

Gatun, C. Z., May 20, 1911.

A special train will leave Panama at 7:30
a. m.. on Sunday, May 28, for the benefit of
those wishing to attend the memorial serv-
ices to be held at Mount Hope cemetery.
The same train will return about 12 noon,
or later. All Americans are invited to attend.



Notice to Haymakers.

There will be a convocation of Chiriqui
Hayloft, No. 1J, at Culebra, on Saturday,
May 27, at 8 o'clock. AH members in good
standing, and visiting companions, are invited.
Business of importance will be transacted.
Bv order of Thos. J. Walsh, Col. of S.

Gorgona, C. Z., May 22, 1911.



308



THE CANAL RECORD



Vol. IV., No. 39.



CANAL WORK IN APRIL.



Monthly Report of the Chairman and Chief Engi-
neer to the Secretary of War.

Culebra, C. Z., May IS, 1911.

Tht Honorable the Secretary of War,

Washington, D. C.

Sir: I have the honor to submit the fol-
lowing report of operations on the Isthmus
for the month of April, 1911:
Department of Construction and Engineering.

The following table summarizes the prin-
cipal items of construction work accomplished
by the Atlantic, Central, and Pacific Divisions
during the month:



ceding month. The daily average for the
24 working days was 2,800 cubic yards, as
compared with a daily average during March
of 3,218 cubic yards. The total amount of
concrete placed during the month was 67,361
cubic yards, including 3,734 1 cubic yards of
large stone. The bucket measurement ex-
ceeded the place measurement by 220| cubic
yards. Of the total concrete, 3.868J cubic
yards were placed in the upper lock, 26,005i
cubic yards in the middle lock, and 37,487
cubic yards in the lower lock. The concrete
work for the entire lock system was 62.44
per cent completed at the end of April.



Item.


Unit.


Atlantic.


Central.


Pacific.


Total.






86.578
492,579


1,489,471
26,968


125.870
439.622


1 701 919




959.169








579.157


1.516,439


565,492


2 661 OSS




























Cubic yards —

Cubic yards —

Tons (Gross)...
Feet


21,239




9,426


30,665




21,239




9,426


30.665




600,396


1,516,439


574,918


2,691,753






573.7S8

71,530

76.05

59,596




81,360

67,393

30.94

71.377


655,148
13S.923








265,39
420,899

26.13
15.78






551,872










3.70

68.746
82,036 50
1.53

162


3.91

49,371
69,120

0.04

3,391






Cubic yards


US, 117
151.514.50




358




Miles




Feet..


1.152
1,003
2,200
8,272
4.52


4,705

1,003

4,450

20,382




Feet








2,250
4,414
6.31






7,696
4.72













Atlantic Division.



GATUN LOCKS.

Shovel excavation during the month was
continued in the lower lock and outside the
Canal prism for the purpose of obtaining
impervious material for back fill. A total of
38,993 cubic yards of material was removed.
Of this amount, 15,807 cubic yards were exca-
vated outside the prism for back fill. On
April 30 the total excavation amounted to
5.830,068 cubic yards, of which 5,009,924
cubic yards were removed from the prism.
The shovel excavation in the locks was 99
per cent completed; the channel excavation
96 per cent completed, and the excavation
of the culvert trenches by crane 80 per
cent completed.

Back Fill — Back filling behind the walls
of the upper and middle locks was continued.
The quantity placed during April aggregated
77,880 cubic yards, increasing the total to
424,455 cubic yards. On April 30 the back
fill was 34.94 per cent completed.

Receiving and Issuing Material — The re-
ceipts of all material during the month were
satisfactory, and exceeded the consumption.

Mixing and Placing Plants — Both plants,
and all portable mixers, were kept in satis-
factory operation during the month.

Power Plant and Pumps — The operation
of the power plant and pumps was satisfac-
tory and economical.

Iron and Steel Work — During the month,
the setting of steel for Stoney gate valves and
hollow quoins was continued. A total of 254
tons of fixed steel, exclusive of reinforcement,
was placed.

Concrete Work — There was a decrease of
19,523 cubic yards in the amount of concrete
laid, as compared with the figures for the pre-



OPERATION OF THE PERMANENT


AND AUXILIARY CON-


CRETE CONSTRUCTION PLANTS, GATUN LOCKS.




Permanent


Auxiliaiy


-


Plant.


Plant.


Length of working day (hours). .


12.03


8.50


Average number of hours per






day worked per strand of






cableway laying concrete and






large stone (actual working








7.10




Average number of mixers per






6.00


2.00


Average hourly output per mixer.




(actual working time) cu. yds.


59.55


63.00


Average amount of concrete and






large stone laid per hour, per






strand of cableway, (actual








34.61




Large stone laid, cu. yds


3,025|


709


Concrete laid, cableways, cu. yds.


44,346




Concrete laid, through chute in-








5,466


7,444


Concrete laid, derricks, cu. yds. .




4,930






1,661








Total amount concrete and






large stone laid, cu yds.. . .


52,8373


14,744



Concrete from the auxiliary plant was placed by five
derricks, and through the chute on the east bank of
the lower lock into dump cars below.

GATUN DAM.

Construction during the month increased
the total fill, as determined by cross sections
of the material in place, by 575,788 cubic
yards, making the total amount in place
13,447,713 cubic yards.

Hydraulic Fill — The dredges increased the
hydraulic fill by 368,658 cubic yards. The
total hydraulic fill in place on April 30 was
7,002,418 cubic yards.

Dry Fill — The material received from the
Central Division, the locks, and steam shovels
Nos. 51 and 134, amounting to 205,130 cubic
yards, was placed on the north and south toesof
the dam, east and west of the spillway, making
the total dry fill in place 6,445,295 cubic yards.

GATUN SPILLWAY.

Excavation — In preparing foundation of
the spillway dam, 1,013 cubic yards of rock



were excavated by steam shovel No. 134, 400
cubic yards by hand, and 365 cubic yards by
derrick, increasing the total spillway exca-
vation to 1,580,794 cubic yards.

Concrete — Construction work on the spill-
way dam was continued. Concrete was placed
behind the east coffer dam, the coffer dam
itself being extended to balanced valve
pier, and 300 cubic yards of earth were
placed in the coffer dam. The amount of
concrete placed during the month aggregated
4,169 cubic yards, which increased the total
to 135,260 cubic yards. The concrete work
for the spillway was 60.2 per cent completed.

HARBOR AND CHANNEL SECTION.

Excavation Below Sea Level at Mindi — Dur-
ing the month, three steam shovels removed
9,235 cubic yards of earth and 59,445 cubic
yards of rock from the Canal prism. In
addition, 5,350 cubic yards of earth were
sluiced by pumping plant.

Dredging from the Ocean to Mindi — Five
dredges removed 443,625 cubic yards of earth
and 34,549 cubic yards of rock from the Canal
prism. In addition, the dredge Mindi re-
moved 21,239 cubic yards of earth in Cristo-
bal harbor, and 5,414 cubic yards of earth
and 2,247 cubic yards of rock in the drydock
slip. On April 30th, 40 feet of water could
be carried from zero to zero plus 2,100 feet;
35 feet to mile 3 plus 100 feet; 30 feet to mile
4 plus 450 feet; 20 feet to mile 5 plus 2,438.9
feet, at the junction with the French canal.

Dredging from Mindi to Gatun Locks — The
dredgeSandpiper removed 33,359 cubic yards of
fill which had accumulated in the Canal prism.

PORTO BELLO.
PERFORMANCE OF ROCK CRUSHER PLANT.

Length of working days — hours

From 1st to 30ih, inclusive 8.00

Average number of houis worked per day. . 6.80

Average number of cubic yards per hour of

working day 358. 10

Average number of cubic yards per working

hour 421.30

Maximum day's output, (7 hours 15 minutes)

cu. yds 3,726.00

Average day's output (74 days) cu. yds. . . . 2,864.00

Average hourly output, (191 hours 7 min-
utes) cu. yds 359.00

Total output for the month, cu. yds 68,746.00

SAND, STONE, AND CEMENT SERVICE.

In connection with this service, plant
steamed 11,225 miles, handled 797 barges,
and carried 3,810 passengers.

TORO POINT.

Colon Breakwater — Forty-five thousand one
hundred and thirty-two cubic yards of
material were excavated, of which amount
4,433 cubic yards were placed in track fill, and
40.699 cubic yards in breakwater fill. The
double track trestle was extended 616 linear
feet. On April 30, the trestle extended 4,214
feet from shore. The total amount of rock
dredged and dumped on the west breakwater
to April 1,1911, was 519,393 cubic yards.
During the month, 36,796 cubic yards were
dredged and dumped, increasing the total to
556,189 cubic yards. The amount of dry
fill placed to May 1 was 271,401 cubic yards.

NOMBRE DE DIOS.

During the month, 99 barges, containing 47,-
801 cubic yardsof sand, were shipped to Gatun.

MUNICIPAL ENGINEERING.

The reservoirs, water mains, sewers, roads,
and oil pipe lines were maintained and ex-
tended as required to facilitate construction
work. Work was continued on the Colon
municipal improvements.

Central Division.

During the month of April the total amount
of material excavated in the Central Division
was 1,516,439 cubic yards, of which 271,650



May 24, 1911.



THE CANAL RECORD



309



cubic yards were classified as earth and 1,244,-
789 cubic yards as rock. Of this quantity,
1,470,752 cubic yards were removed by steam
shovels, 2,788 cubic yards by scraper, 8,956
cubic yards by bucket cranes, and 2,543 cubic
yards by hand. Contractors removed 26,968
cubic yards by sluicing, and 4,432 cubic yards
by hand. Of the total, 1,497,147 cubic yards
consisted of primary excavation for the Canal
prism, 10,336 cubic yards permanent diver-
sion useful after the Canal is completed, and
8,956 cubic yards of silt deposited in completed
sections of prism. The total work excava-
tion amounted to 1,516,439 cubic yards.
Owing to the completion of steam shovel work
in the Chagres section, the total output for
the Central Division for the month was not
so great as in April, 1910, but the output from
the Culebra section, 1,414,336 cubic yards,
was the highest record in that section for the
month of April, the previous high record for
the month having been in April, 1909, when
1,291,844 cubic yards were excavated.

The daily average number of steam shovels
at work during the month was 44.71, and the
total number of shovel days was 1,073, as
compared with 50.63 shovels at work during
the month of March, with 1,367 shovel days.

For comparison with the work done by
steam shovels during the corresponding month
of the previous year, the following table has
been prepared:



Period.


Excava-
ted by
shovels.


Classifies
mater

Rock.


tiou of
ial.

Earth.


.3 •
^ o c

$■*

o =


U5
>>

■o

M

:6

24


Av. yards
per shovel
day.


1910:
April . .

1911:
April . .


Cu. Yds.
1.6S5.030

1.470.752


Cu. Yds.
1.161.391

1.227.485


Cu. Yds.
523.639

243,267


50 04
44.71


C. V,

1,295.2

1,370.7



Rainfall at Empire: 1910. 4.24 ins.: 1911. 3.93 ins.

The above table shows the average output
per shovel to e 5.83 per cent greater in April
1911, than in the corresponding month of the
previous year.

The total amount of material excavated
from the prism in the Culebra section of the
Central Division in April, 1911 — 1,404,000
cubic yards — was the highest record in that sec-
tion for the month of April, the previous high
record for the month having been in April, 1910,
when 1,288,845 cubic yards were removed.

The total estimated amount of material to
be removed in the Central Division was
97,125,018 cubic yards, and up to May 1, 1911,
74,576,048 cubic yards had been removed,
leaving 22,548,970 cubic yards to be removed,
in order to complete all excavation in the
Central Division. From these figures it will
be seen that 76.78 per cent of all excavation
in the Central Division had been completed
up to the close of the month of April, and 23.22
per cent remained uncompleted.

Considering the two sections which com-
pose the Central Division, the excavation
completed and that to be completed at the
close of April operations was, as follows:

CULEBRA SECTION, Cu. Yds.

Completed 62.814.749

To be completed 21,371,975

CHAGRES SECTION.

Completed 11.761.299

To be completed 1 , 1 76,995

From the above figures it will be seen that
the Culebra section, locally known as the
"Culebra Cut," was 74.61 percent completed,
with 25.39 per cent to be completed; the
Chagres section was 90.91 per cent completed,
with 9.09 per cent to be completed.

During the month, 41 800 cubic yards of



material were hauled from the Canal prism
and dumped in the embankment for the road-
bed of the relocated Panama railroad on the
Gold Hill line, and 22,743 cubic yards south of
Caimito. The total amount of spoil from the
Central Division used for this purpose at the
close of the month was 3,828,037 cubic yards.
The Centra! Division also delivered at Gatun
208,067 cubic yards of rock and earth for use
in the construction of the dam, making the
total for this purpose at the end of April
3,355,867 cubic yards. In addition, the Cen-
tral Division delivered 2,793 cubic yards of
rock and earth to the Pacific Division to be
used as back fill for the lock at Pedro Miguel,
increasing the total for this purpose to 30,533
cubic yards. There were also 1,050 cubic
yards of rock and earth transported to Colon
to be used by the Panama railroad in building
a new sea wall.

The daily average number of laborers at
work on the whole division during the month
was 7,418, and the daily average number of
gold employes 854.

Pacific Division.

DISTRICT NO. 1 LOCKS AND DAMS.

Excavation — The total excavation during
the month amounted to 125,870 cubic yards.

Filling and Embankment — During April, no
additional dry filling was added to the prism
of the west dam at Pedro Miguel, the total
amount of material in place at the close of the
month remaining at 260,852 cubic yards, as
previously reported. The back fill at Pedro
Miguel was increased by 61,379 cubic yards,
the total in place at the end of the month
amounting to 250,034 cubic yards.

At Miraflores, 67,260 cubic yards were
added to the dry fill in the toes, and 14,100
cubic yards to the hydraulic fill in the core
of the west dam, making the totals at the end
of the month 758,152 cubic yards, and 510,521
cubic yards, respectively. The back fill was
increased by 6,540 cubic yards, increasing
the total to 142,425 cubic yards.

PEDRO MIGUEL LOCKS.

The back filling of the east and west walls
was continued. The dismantling of berm
crane "G" was completed, and the tower and
boom arm were erected at Miraflores. The
2-cubic yard auxiliary concrete mixer located
in the east storage trestle was moved and
erected beside the one in the west storage
trestle, and the east trestle taken out to make
room for a drainage channel from the Culebra
Cut to the middle wall culvert of the locks.
During the month, the amount of iron placed
aggregated 521,834 pounds.

Concrete Work — The total amount of con-
crete and large stone laid at Pedro Miguel was
28,635 cubic yards, as compared with 44,716
cubic yards during March. The concrete
was placed, as follows: 11,833 cubic yards in
the west wall; 739 cubic yards in the west



head wall; 9,543 cubic yards in the center
wall, and 6,520 cubic yards in the east wall.

OPERATION OF THE PERMANENT AND AUXILIARY CON-
CRETE CONSTRUCTION PLANTS AT PEDRO MIGUEL.



Permanent Auxiliary
Plant. Plant.



Length of working day (hours).. .

Average number of hours per day,
worked laying concrete and
large stone (actual working
time)

Average number of mixers per
day

Average hourly output per mixer
(actual working time)

Average amount of concrete and
large stone laid per hour, per
chamber crane (actual working
time)



8.00



4.75



Large stone laid .
Concrete laid . . .



6.55

3.50

Cu. Yds. Cu. Yds.
54.78 ' 27.96



53.68



20,900.00 ! 7.735.00



Total concrete laid ' 20,900.00 I 7.735.00

Auxiliary plant consisted of three 2-cubic yard mixers
and one J-yard mixer. Placing plant consisted of lo-
comotive cranes and derricks, averaging 1.25 units a
day. and J-cubicyard mixerdumping directly into forms.

MIRAFLORES LOCKS.

The dry excavation in the lower lock was
continued by six steam shovels, and the exca-
vation of the sump pit for draining the lock
site was commenced. Back filling behind the
east wall was started preparatory to laying
material tracks to auxiliary mixing plant
which will be installed in east side wall near
lower end of upper lock. Filling was con-
tinued in the east and west toes of the west
dam. During the month, the amount of iron
placed aggregated 118,409 pounds.

Concrete Work — The total amount of con-
crete and large stone laid was 67,393 cubic
yards, as compared with 31,173 cubic yards
during March. The concrete was placed, as
follows: 14,989 cubic yards in the east wall;
2,967 cubic yards in the center wall; 18,435
cubic yards in the west wall, and 2,367 cubic
yards in the floors.

OPERATION OF THE PERMANENT AND AUXILIARY CON-
CRETE CONSTRUCTION PLANTS AT MIRAFLORES.





Permanent
Plant.


Auxiliary
Plant.


Length of working day (hours). .

Average number of hours per day
worked laying concrete and
large stone (actual working


8.00

6.25

3.50

Cu. Yds.

35.41

60.30


8.00
7.15


Average number of mixers per