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cannon for coast defense, including their carriages,
sights, implements, equipments, and the machinery
necessary for the manufacture at the arsenals, to cost
ultimately not to exceed one million nine hundred and
sixty thousand dollars, one million dollars, the same to
be immediately available and to continue available
until expended."

By recommendation of the Panama Forti-
fication Board, the work on the Isthmus will
be done under the direction of the Isthmian
Canal Commission. The original estimate
for this purpose was 814,104,203, and was
published in The Canal Record of May 18,
1910. The estimate sent to Congress on
November 1, 1910, provided for an appro-
priation of S19,546,843. A report of the
fortification board of January 4, 1911, reduces
the amount to be appropriated to S12,475,328.

The estimates on which the initial appro-
priation was made recommended seacoast
armament for the defense of the Canal against
naval attack by 14-inch rifles, 6-inch rifles,
and 12-inch mortars.



Excavation Along Chagres River.

Excavation in the section of the Canal
along the Chagres river between Gatun and
Culebra Cut is within 600,000 cubic yards of
completion, and, by the middle of next month
all work that the Central Division forces can
do during the present year will have been
completed. There yet remain 178,000 cubic
yards at Bohio, which is to be sluiced by a
contractor, 6,000 cubic yards in the right-of-
way of the Panama railroad at Bohio,
253,000 cubic yards at San Pablo, 20,000 at
Tabernilla, 126,000 at Gorgona on which a
contractor is now working, and the small
quantity at Gorgona which the Central Divi-
sion will finish by April 10.

The 6,000 yards at Bohio, and the 253,000
at San Pablo, will not be excavated until the
present line of the Panama railroad is aban-
doned for the relocation, because the work
would interfere with traffic. Sluicing at
Bohio is about to begin: the steam shovel
work at Tabernilla is almost finished, and
the contract excavation at Gorgona is under
way. The contractor on this piece of work
has erected two steam-driven centrifugal
pumps, which draw water from the river and
force it through pipe to any part of the exca-
vation desired. It is proposed to erect a
movable sluice box into which the earth ex-



cavated will be dumped, to be carried by the
water into the river.

The Central Division has an economical
dump at Gorgona by means of which the
Chagres is utilized. It is a trestle across the
river upon which the spoil trains are run and
dumped, the water carrying the material
away. Five thousand cubic yards a day have
been dumped over this trestle six days a week
for the past six weeks, and the river has
cleared it all away. The river bottom has
been raised from 10 to 15 feet by this pro-
cess, and, in consequence, a deep pond has
been formed above the trestle. The water
thus impounded escapes through a narrow
channel under a head of five feet, or more,
and sluices the dump as rapidly as the cars
are unloaded.

The work at Mamei is finished, except for
a small quantity of hand excavation and the
removal of the old French dredge, both of
which are in progress.



Empire-Chorrera Highway.

A survey, preliminary to the construction
of a Zone highway from the village of Empire
to the Canal Zone boundary three miles north
of Arraijan. following for some distance the
route of the present Empire-Chorrera trail,
has been authorized. Trails from Miraflores,
Pedro Miguel, Paraiso, Culebra, and Empire
converge just inside the Zone line and enter
Arraijan, a native town situated about one-
eighth of a mile from the Panama side of
the boundary. The trail from Pedro Miguel
was considerably used at one time, and, in
1906, the Canal Zone Government had it
widened and cleared. Lock construction at
Pedro Miguel blocked the entrance to that
village, and it is now much less used than
formerly, and has again become choked with
vegetation.

From Empire to Arraijan the trail traverses
one of the best agricultural sections in the
Canal Zone, and a large amount of fruit and
produce is brought over it by pack horse and
marketed in Empire. During the rainy season
parts of this trail become almost impassable,
due to the mud and the lack of bridges over
the two or three streams that have to be
crossed, thus interrupting traffic for days at
a time. The proposed road will be about six
and one-half miles in length, and while it
will pass Arraijan considerably to the north, a
fairly good trail will lead from it to the village.
Prison laborwill be utilized. There is a good
wagon road extending west of Empire to the
old rock quarry, a distance of about a mile
from the railroad station. Near the quarry
the Chorrera trail diverges and crosses tin-
first range of hills through a steep and narrow
pass, which, in wet weather, is muddy and
badly washed out. The survey contemplates
avoiding this pass altogether, and the ascent
of the range where an easier grade can be
established. The new road will probably be
16 feet in width, will conform closely to the



226



THE CANAL RECORD



Vol. IV., No. 29.



NOTES OF PROGRESS.



{Continued.)



recommendations of the committee on stand-
dard road construction in the Canal Zone,
and will be built under the direction of the
municipal engineer of the Central Division.
Temporary improvements, consisting of fills
in low places, and of creosoted plank bridges
across ravines and gullies, have recently been
made along the trail.

From the Zone line to Chorrera, a distance
of eight or nine miles, the trail runs in a south-
westerly direction. The Panama Govern-
ment has given assurance that it will con-
tinue the highway built to the Zone line into
Chorrera, thereby making this entire section
of country accessible to Empire. Chorrera
is a native village of about 3,500 inhabitants,
situated near the Chorrera River, and about
four miles from the falls, which are the largest
in this part of the Isthmus. There are many
farms of considerable extent in that section
on which cattle are raised, and corn and
other produce grown.

Gatun Spillway.
Concrete was placed in the spillway of
Gatun Dam during the week ending March
11, as follows:



Date.


Concrete
Laid.


Hours
worked.


No.
Mixers.


March 6

March 7


154
294
330
286
318
360


13:00
15:00
17:00
15:00
17:00
17:00


2
2
2




. 2




2


March 11


2






Total

Previously reported . . .


1.742
122,644


94:00


2


Grand total


124.386





Changes at East Balboa Electric Plant.

The installation of a 500-kilowatt, low
pressure, turbo-generator, to displace all of
the present electrical generating equipment at
the power and air compressor plant, near East
Balboa, has been authorized. The main en-
gine shaft at the plant broke on January 1,
placing the larger of the two alternating cur-
rent generators out of commission, and cur-
tailing the production of current for lighting
purposes. Since then, the Pacific Division
plant at Miraflores has been carrying part
of the night load. The East Balboa plant has
been supplying alternating current for day
and night lighting in Ancon, Balboa, and East
Balboa, and direct current for the operation
of the cranes on the Panama railroad wharf
and for the motors in the Pacific Division
machine shop at Balboa. The new genera-
tor will be of the 2200-volt, 3-phase, 25-cycle
type, and its installation will necessitate the
substitution of the present direct current
motors on the wharf, and in the machine
shop, with 220-volt, 3-phase, 25-cycle motors.

The committee, who had the matter in
charge, considered the feasibility of furnishing
all current in the area between Balboa and
Pedro Miguel from the Miraflores plant, but
the determination was reached that the latter
could not safely assume the extra day load
without danger of interruption to the work in
the Pacific Division. Under the new arrange-
ment, the Balboa and Miraflores plants will
be operated in parallel; the Balboa plant will
carry its present day load, operating under
power furnished by the exhaust steam of the
air compressors, which will not only consti-
tute a fuel economy, but will obviate any ne-



cessity for additional boiler capacity; while
the Miraflores plant will assume the night load.
In addition to the electric current required
at Balboa during the day, there is sufficient
energy in the exhaust steam to furnish from
100 to 200 kilowatts to the system now oper-
ated by the Miraflores plant.

It was also recommended that the present
circulating water system for the condenser at



the Balboa plant be retained, but that a
motor-driven centrifugal pump, available on
the Isthmus, be substituted for the nonexpan-
sive circulating pump now in use. This
arrangement contemplates the continuance
of the pool and spray system for reducing the
temperature of the circulating water in the
condenser, now standing at about S3 degrees
Fahrenheit.



CONCRETE WORK IN THE LOCKS.



GATUN LOCKS.



About 57 per cent of the concrete for the system of three twin locks at Gatun has been laid,
the exact amount in place at the close of work on March 11, being l,lS0,640f cubic yards,
out of a total of 2,085,000.

A statement of the amount of concrete placed in the locks each day for the week ending
March 11, and of the total, follows; and a similar statement for the work in the spillway of
Gatun Dam is published elsewhere in this issue. The construction plant works 12 hours daily,
and the auxiliary plant 9 hours.





Construction Plant.
2-cublc yard mixers.


Auxiliary Plant.
2-cubic yard mixers.


Large

stone.






Concrete Hours
placed, worked.


No. of
mixers


Concrete Hours ' No. of
placed, i worked. • mixers






Cu. Yds.
2.146
2,592
2.622
2.642
2.148
1,916


43:08
45:50
42:29
43:36
38:29
31:10


6
6

I

7
6


Cu. Yds.
514
854
670
786
498
694
380


8:40
9:40
8:40


2


Cu. Yds.
123}
2675
296 j
256}
2623
219!


Cu. Yds.
2.783}




3.713}




3,588}




8:40 1 2
7:40


3.684}




2.908}




8:40


2


2,829}
380


























14,066


244:42


6.17


4,396


52:00


2


1,426}


19J388}




1.160,752}



























1.180,640}



*The 380 yards shown for the portable mixers were reinforced concrete, and were placed on the following days:
March 6th. 77 J yards; March 7th. 68} yards; March 8th. 51 yards; March 9th. 45} yards; March 10th. 67 5 yards;
March 11th, 70 yards.

PEDRO MIGUEL LOCKS.

Concrete work in the locks at Pedro Miguel is over 68 per cent completed, 575,717 cubic
yards, out of a total of 837,400, having been placed at the close of work on March 11. The
record for each of the six 8-hour working days of last week, follows;





Construction Plant.


Auxiliary Plant.


Large
stone.






2-cubic yard mixers.


2-cubic yard mixers. ! J-cubic yard mixer.


Total.




Concrete Hours
placed, worked.


No. of

mixers


Concrete
placed.


Hours No. of Concrete
worked, mixers' Placed.


Hours
worked.


No of
mixers.




March 6. .
March 7 . .
March 8 .
March 9. .
March 10.
March 1 1 .


Cu. Yds.

1,252
828
958
946
826

1.058


16:00
12:00
14:00
14:00
14:00
16:00


2
2
2
2

2
2


Cu. Yds.
832
666
688
526
420
580


21:00 3
17:50 3
16:50 3
1 1 :50 3
9:511 2
14:50 3


Cu. Yds.
15
77
125
129
127
117


:75
4:50
8:00
8:00
8:00
8:50


' 1

1
1
1
1

1


Cu. Yds.


Cu. Yds.
2,099
1,571
1,771
1,601
1.373
1.755


Total
Previously


5.86S


86:00


2


3.712


90:50


2.83


590


37:75


1


4.178
4,178


10.170
565,547


Grand






















575,717

























MIRAFLORES LOCKS.

Over 11 percent of the concrete for the system of locks at Miraflores was in place on
March 11, the total amount on that date being 152,286 cubic yards, out of a total of approxi-
mately 1,362,000. The record for each of the six 8-hour working days of last week, follows:





Auxiliary Plant.




Date.


2-cubic yard mixers.


}-cubic yard mixers.


}-cubic yard mixer.


Total.




Concrete
placad.


Hours
worked .


No. of Concrete Hours No. of
mixers placed, worked, mixers


Concrete
placed.


Hours No. of
worked. Imixers


Large
stone.




March 6 . .
March 7 . .
March 8 . .
March 9 .

March 10.

Mar. h 11


Cu. Yds.
316
104

312
292

3(1 !

J to


7:33
7:00
6:83
6:00
6:50
5:50


2
2
2
2
2
2


Cu. Yds.
498
619
700
691
508
650


33:50
34:75
41:25
35:00
23:33
33:00


5
5

5
5
5
5


Cu. Yds.
63
82

72
85
57
92


4:75
6:50
5:00
7:00
4:50
7:00


1
1
1
1
1
1


Cu. Yds.

7
25
10
15
20


Cu. Yds.

887
1,026
1,115
1.093

910
1,012


Total
Previously


1.766


39:16


2


3,666


200:83


5


451


34:75


1


77
3.533


*6.043
146,243






















Grand






3,610


152286



•At Miraflores, the aiuimnt of concrete laid bv hand, which is included in the total for each day was. as follcws;
March 6th, 10 yards; March 7th. 14 yards; March 8th. 6 yards; March 9th. 15 yards; March 10th, 28 yards:
March 11th. 10 yards; total. 83 yards.



March 15, 1911.



THE CANAL RECORD



227



STEAM SHOVEL RECORDS.



Central Division and Relocation Work.

During the month of February the total
amount of material excavated in the Central
Division was 1,630,758 cubic yards, of which
477,477 cubic yards were classified as earth,
and 1.153.2S1 cubic yards as rock. Of this
quantity, 1,600,597 cubic yards were removed
by steam shovels, 5 ,096 cubic yards by scraper,
16,699 cubic yards by bucket cranes, and S70
cubic yards by hand. Contractors removed
4,304 cubic yards by sluicing, and 3,192 cubic
yards by hand.

The high record for the month was made by
shovel No. 256, working 23 days in the Cule-
bra district, which excavated 57,754 cubic
yards of rock. The second best record for the
month was made by shovel No. 206, working
23 days in the Culebra district, which exca-
vated 55,695 cubic yards of rock.

The best record for a shovel of the 70-ton
class was made by shovel Xo. 109, working
21 days in the Culebra district, which exca-
vated 34,193 cubic yards of earth.

Shovel No. 201, working in the Empire
district, made a high record for one day by
excavating 3,249 cubic yards of rock on
February 9. Shovel No. 126, working in the
Chagres district, excavated 2,820 cubic yards
of earth on February 21, and this is the high
record for one day for a shovel of the 70-ton
class, during the month.

Except where noted, monthly reports are
computed by place measurement, while the
daily reports are based on car measurement.
The best records for the month, and for one
day. are shown below:

BEST RECORDS FOR THE MONTH.

CHAGRES DISTRICT.







Cubic


Yards.




Shovel
No.


Earth.


Rock.


Total.


No. of

days at

work.


126


26.088
24,350




26,088
24.350


19


108


21









EMPIRE DISTRICT.




201




47,928 47,928 i
34.842 : 43.552
40.432 | 40.432 I


23


263


8,710


23


221


23











CULEBRA DISTRICT.



256.




57,754 57,754


23


206.
208.





55,695 55.695

1 52,761 52.761


23
23


PEDRO MIGUEL.


231.




8.000 21.7S6 29,786


22


BEST RECORDS FOR ONE DAY.


>
o

in


Location


Character of
Date. material
excavated.


Cubic
yards.



126
115

1 1 !
201

2 26
if,;


Chagres*. . . .
Chagres*. . . .
Chagres*. . . .

Empire

Culebra

Culebra

Culebra

Pedro Miguel.
Pedro Miguel.
Pedro Miguel.
Pedro Miguel.


Feb.
Feb.

Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.
Feb.


21

27

1

9

24

27

28

23

18

10

11

21

11

in

20

1

3

2

8


Earth

Earth

Earth

Rock

Rock

Rock


2,820
1,840
1.840
3,249
2,375
2.365


Mil


Rock


2,278


rat


Rock


2.226


)>v


Rock


2.109


205

2115
206
251,
25(

>v


Rock and earth. .
Rock and earth. .
Rock and earth. .
Rock and earth . .
Rock and earth. .
Rock


2.942
3.095
3,120
3.192
2,945
3.059


•;i


Rock


2.50s


Ml


Rock


2,413


251
231


Rock

Rock


2,356
2,280


*


70-too class.











Relocated Line, P. R. R.
The total excavation on the relocation of
the Panama tT ilroad for the month of Feb-



ruary was 320,238 cubic yards, of which
129,428 cubic yards were earth, 3,020 cubic
yards loose rock, and 186,790 cubic yards
solid rock.

Six steam shovels on the Gatun-Monte
Lirio section removed 252, S15 cubic yards.

On the Gold Hill section, a total of 67,423
cubic yards were excavated, 40,64S cubic
yards by pan car task work, 20,720 cubic yards
by contract, also done by pan cars, and 3,800
cubic yards by steam shovel.

The best record was made by steam shovel
No. 257, working south of Gatun, which
excavated 1,345 cubic yards of earth and
57,550 cubic yards of rock, a total of 5S.895
cubic yards in 23 working days.

The best record for a 70-ton shovel was
made by steam shovel No. 117, also working
on the Gatun section, which excavated 1,000
cubic yards of earth and 38,990 cubic yards
of rock, a total of 39,990 cubic yards in 23
working days.

The best day's record for shovels with
5-yard dippers was made by steam shovel
No. 257, which excavated 3,360 cubic yards
of rock on February 18. This shovel exca-
vated 3,350 cubic yards on February 17,
wh.ich was the second best record. On Feb-



ruary 2, steam shovel No. 262 excavated
3,260 cubic yards of rock.

In the 70-ton class, the best day's record
was 2,190 cubic yards of earth and rock, -ex-
cavated by steam shovel No. 121, on Feb-
ruary 28.

BEST RECORDS FOR THE MONTH.





Cubic Yards by Cross Section.


Shovel No.


Days Earth
worked.


Rock.


Total.


257


23 1.345
23 20,670
23 1,000


57.550 1 58.89S


262


33.250 , 53,920


117


38,990









Total output during the month of February - . 1911.
256.615 cubic yards.

Total number of steam shovel working days. 143.
Average output per working day, 1.795 cubic yards.



1. B. of S. S. and D. M.

Local No. 19 of the International Brother-
hood of Steam Shovel and Dredge Men will
hold its regular meeting on Sunday, March
19, at the I. C. C. lodge hall, Empire, at
12.15 p. m. All brotherhood men are re-
quested to attend this meeting.

Walter P. Tudor, Secretary and Treasurer.

Empire,, C. Z., March 10, 1911.



PERFORMANCE OF TRACK SHIFTERS.



A statement of work performed by the nine track shifters in the Canal service during the
months of October and November, 1910, has been prepared showing: (1) Time consumed.
(2) Working efficiency of each machine based on an arbitrary amount of 10,000 feet of track
shifted per day. (3) Per cent of time actually worked. A summary of performances for
these two months shows that the five track shifters in the Central Division had an average
efficiency of 63.5 per cent, and the per cent of time used 46.5. In the Atlantic Division,
with two shifters, the average efficiency was 24.5 per cent, and the per cent of time used 62.
In the Pacific Division, with two machines, the average efficiency was nine-tenths of one per
cent, and the per cent of time used three and four-tenths. The low efficiency in the Pacific
Division is due principally to the light demand on the services of the shifters, which, however,
will be considerably augmented when the dry excavation work in the lower lock at Miraflores
is fully under way. The statement, in detail, follows;

October, 1910.



Track Time con- In shop.
Division. Location. shifted. 1 sumed.

(Feet.) ', (Hours.)t ' (Days)


Per cent of Per cent
efficiency.* time
worked.


Pacific —
No. 10 Pedro Miguel and Miraflores. .


700 3
4,000 ' 17




.30
1.60












Central —

Xo. 2

No. 5

No. 6

Xo. 7

No. 8

Atlantic —

No. 1

No. 4


Total


4.700 ; 20




.94


5.00




147,353 72
147.005 91




60.00
60.00


34.00






45.00




31






247.480 140
125,260 106


99.00
50.00


68.00






54.00


Total






667,098 1 409


31


66.00


50.00




47,520
60.720


65

152


8


20.00
25.00


43.00
75.00








108,240


217


8


22.00


64.00











November, 1910










Pacific —




1,300
3,000


2
6




.50
1.20


1.00








3.00




Total








4,300


'8





.85


2.00


Central —




171.(1110

67.100

2.000

265.375

110.745


86

42

3

101

108


1


70.00

27.00

.80


45.00






24.00






28


1.50








100.00


53.00








44.00


57.00




Total








616.220


340


29


61.00


43.00


Atlantic —

No. 1

No. 4




60.720
74.448


85
141




25.00
30.00


44.11*1






74.00












135. 16S


226




27.00


60.00











♦Based on 10.000 feet per day, or 250,000 feet per month,
t Based on 20S nours for October and 192 hours for November,
in November, there were 24.



In October, there were 26 working days, and



228



THE CANAL RECORD



Vol. IV., No. 29.



SOCIAL LIFE OF THE ZONE.



Women's Clubs.

At the meeting of the executive board of
the Cristobal Woman's Chtb held on Wednes-
day morning, March S, the resignation of
Mrs. F. C. Crummett as treasurer was ac-
cepted, and Mrs. Fred Guderian was ap-
pointed in her place. The program at the
meeting of the home department on Wednes-
day afternoon, March 8, consisted of papers
on the business side of housekeeping. The
homedepartment will close the year'sprogram,
with papers on the poets, on April 12. The
annual meeting and election of officers will
be held on April 26.

The president of the Canal Zone Federation
was the guest of the Paraiso Woman's Club on
Wednesday, March 8, and spoke on "Child
welfare."

The Gatun Woman's Club will hold its
quarterly election of officers on March 31.
At this meeting, papers on public health will
be read, and the program will close with a
drill in parliamentary law.

An exhibit of the federation pictures will
be held by the Gorgona Woman's Club at the
residence of Mrs. B. F. Henckle, house No.
83, beginning on Wednesday afternoon, March
16, and continuing until Friday evening,
March 17. The exhibit will be open to all
residents of Gorgona.

The next meeting of the Empire Woman's
Club will be held at the home of Mrs. J. H.
Westberg on Thursday, March 16. A num-
ber of women from Las Cascadas have joined
the club. Mrs. C. R. Lingo has been ap-
pointed in charge of the current events pro-
gram for each meeting.



Church Work.

A meeting of those interested in missionary
work on the Isthmus will be held at the Gor-
gona chapel on Wednesday afternoon, March
22, under the direction of Mrs. J. Leon Web-
ster, representative for the Canal Zone of the
Woman's Foreign Missionary Society of the
Methodist Episcopal Church. Mrs. W. W.
Gray will deliver an address.

The Salvation Army has opened a barrack
at Gatun, and has also extended its work
along the coast, by establishing branches at
Port Limon and Bocas del Toro. On Sunday,
February 11, Colonel Maidment, commander
for the West Indies, British Guiana, and Pan-
ama, paid a visit of inspection to the institute
in Colon, when a conference of the' heads of
the divisions in the Canal Zone was held.
Since the beginning of the year, Adjutant
George Catlin, and Mrs. Catlin, of England,
have been in charge of the social institute at
Colon and the work on the Isthmus.



Secret Societies.

A meeting of those interested in the or-
ganization of a Canal Zone chapter of the Order
of the Eastern Star will be held at the lodge
hall in Gorgona on Sunday, March 19, at
2.30 p. m..

At the recent dance held by the Pythian
Sisters in the lodge hall at Las Cascadas for
the benefit of the Pythian sanitorium at Las
Vegas, N. M., the receipts were $100.



Lawn Tennis.

At the tournament in singles held by the
Isthmian Tennis Association at Empire on
March 5, the following was the result: Pre-
liminaries — Stokes, Empire, defeated Deane,
Panama, 6-4, 6-3; Ross, Tivoli, defeated



Rogers, Culebra, 6-1, 6-2; Dryden, Cristobal,
defeated Wells, Gatun, 6-4, 6-4.

Semifinals — Stokes defeated Rogers, 4-6,
6-3, 6—4; Ross defeated Dryden, 6-3, 6-2.

Finals — Ross defeated Stokes, S-6, 8-6.

The next tournament of the association
will be held in doubles at Panama on April 2.
The winning club of this tournament will be-
come the custodian of the Maduro-Lupi cup
for the season of 1911.

W. M. Wood of Empire, will be pleased to
hear from members of tennis clubs on the