Isthmian Canal Commission (U.S.).

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charge being about 5 tons of explosive to
20 holes. When the blast is set off a sheet
of water is thrown 50 feet or more into the
air. First there arises a mass of white foam,
then a cloud of muddy water as broad but
not so high as the white, and finally the gas
from the dynamite, a slowly dissipating
amber cloud which hangs in the air for quite
a minute. When blasting is begun on a
ledge large quantities of fish are killed, but
almost immediately after the first charges
the fish seem to desert the vicinity and only a
few are killed by subsequent blasts.

Part of the rock is prepared for the dredges
by the sub-aqueous rock breaker Vulcan
which is now operating in soft material at a
point about five miles inland. The amount
of work accomplished by this method is not
large, but the cost is low.



Gatun Dam Spillway.

The concrete work in the spillway of Gatun
Dam is over 53 per cent completed, 132,598
cubic yards out of a total of 250,000 having
been placed up to the close of work on April
15 A statement of the amount laid each
day lasi week and of the total in place, fol-
lows:



Date.


Concrete
Laid.


Hours
worked.


No.
Mixers.


April 10


Ch. Yds.
216
200
212
154

192


15:00
17:00
17:00
15:30

15:00


2


April 11


2


April 12


2


April 13


2


Aptil 14 — -Holiday.
April 15


2








974
131.624


79:30


2


Previously reported . . .






132,598





Pilots, Masters, Mates, and Engineers.

A meeting of the Board of Local Inspectors
will be held on Wednesday, April 26, at 8



a. m., at the Administration building, Ancon,
at which time applicants for licenses as Pilots,
Masters, Mates, or Engineers, who have
submitted applications on the prescribed form,
may appear for examination.



Changes in Organization.

On account of the death of W. B. Corse,
Resident Engineer of the first district,



Pacific Division, the following changes in
the organization of that division have been
made: H. O. Cole from assistant engineer
in charge of municipal work to resident
engineer; Frank Cotton from assistant engi-
neer to assistant engineer in charge of muni-
cipal work; H. D. Hinman from junior engi-
neer to assistant engineer; W. Rowland from
draftsman to junior engineer.



CONCRETE WORK IN THE LOCKS.



GATUN LOCKS.



Over 60 per cent of the concrete for the system of three twin locks at Gatun has been laid,
the amount in place at the close of work on April 15, being 1,26S,702J 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
April 15, 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.



Date.



April 10

April 11

April 12

April 13

April 14 — Holiday.

April 15

*Portable mixers.



Total

Previously reported.



Construction Plant.
2-cubic yard mixers.



Concrete
placed.



Cu. Yds.
2,308
2,084
1,796
1,994

2,196



10.378



Hours
worked.



No. of
mixers



Auxiliary Plant.
2-cubic yard mixers.



Concrete
placed.



39:21
39:21
26:10
32:42

32:34



170:08



Grand total 1,268,702 J



Cu. Yds.
454
652
674
706

620

288



3,394



Hours
worked.



No. of
mixers.!



Large

stone.



Total.



7:40
8:40
8:40
8:40

8:40



Cu. Yds.\ Cu. Yds.
91 2.853

2.897
2,679i
2,818$

3,007}
"288



161
209 J
1185

191}



771*



14,543$
1.254,159



The 288 vards shown for the portable mixers are reinforced concrete, and were placed on the following days:
April 10, 69 yards; April 11, 36 yards; April 12. 59 yards; April 13th, 45J yards; April 15th, 78} yards.

PEDRO MIGUEL LOCKS.

Concrete work in the locks at Pedro Miguel is over 74 per cent completed, 621,926 cubic
yards, out of a total of 837,400, having been placed at the close of work on April 15. 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.


i-cubic yard mixer.


Total.




Concrete Hours
placed, worked.


No. of
mixers


Concrete
placed.


Hours ! No. of
worked, mixers


Concrete
Placed.


Hours
worked


No. of
mixers




April 10. .
April 11..
April 12. .
April 13. .
April 14. .
April 15. .


Cu. Yds.

910
1,024

706

970
Holiday

726


14:00
15:00
12:00
14:00

15:33


2
2
2
2

2


Cu. Yds.-
390
384
188
292

276


10:00
9:50
5:00
7:00

7:00


2
2
1
1

1


Cu. Yds.
102
111
101
176

159


6:50

6:50

5:50

12:25

10:50


1
2
1
2

2


Cu. Yds.


Cu. Yds.
1,402
1,519
1,085
1,438

1,161


Total ....
Previously


4.426


70:33


2


1.530


38:50


1.40


649


41:25


1.60


4,179


6,605
614.926
























Grand


4.179


621,926



MIRAFLORES LOCKS.

Over 14 per cent of the concrete for the system of two twin locks at Miraflores was in place
on April 15, the total amount on that date being 191,302 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:





Construction Plant.
2-cubic yard mixers.


Auxiliary Plant.




Date.


2-cubic yard mixers.


i-cubic yard mixer.


Total.




Concrete
placed.


Hours
worked.


No. of

mixers


Concrete Hours No. of
placed. l worked, mixers


Concrete Hours
placed. 1 worked.


No. of

mixers


Large
stone.




April 10. .
April 11. .
April 12. .
April 13. .
April 14. .
April IS. .


Cu. Yds.
798
678
524
772

Holiday
790


24:33
20:00
15:50
24:00

25:33


4
4
4
4

4


Cu. Yds.
156
212
208
200

208


4:00
4:00
4:00
3:67

4:00


2

2
2
2

2


Cu. Yds.
766
656

545
472

541
*256


46:50
39:50
35:25
35:00

37:00
25:50


6
5
6

5

5
1


Cu. Yds.


Cu Yds.
1,805
1,649
1,345
1,444

1,539




















Total

Previously
reported .


3,562


109:56


4


984


19:67


2


3,236


219:55


5.60


3,693


7,782
183.520






















Grand


3,693


191,302



♦This 256 yards was mixed by a J-yard mixer, the amounts for each day being: April loth, 85 yards; April 11th,
103 yards; April 12th, 68jyards.



April 19, 1911.



THE CANAL RECORD



267



COUPON BOOKS FOR CASH.



Three Months Trial to be Made at Gcrgona Shops.

It has been decided to make a three months'
trial of the cash method of selling commissary
and hotel coupon books to employes of the
Gorgona shops, beginning May 1. The
method now in general use is to issue the books
to employes and deduct the value of them from
their pay, and a circular published in the
April 5 issue of The Canal Record gives
the restrictions on the value of books that
may be drawn in any month. The present
method has the effect of limiting the number
of days on which the books may be drawn,
and involves a greater amount of clerical
work than will be necessary under a proper
cash system. Economy and the convenience
of the employes prompt the trial of the new
method, and if it is found satisfactory it will
be extended to all the force. The details so
far agreed upon are given as follows in the
report of the committee appointed to arrange
the trial:

"That the trial be made beginning May 1, and be
limited to employes of the Mechanical Division who
are located at Gorgona.

"That the issuing, handling, accounting, etc., of
both books and cash be under the control of the Panama
Railroad Company (commissaries) and under existing
rules and regulations of the Commission, so far as same
are not inapplicable to the change in method.

"That the Superintendent of the Mechanical Divi-
sion have printed such notices as may be necessary and
in such different languages as may be required, posting
them in conspicuous places in order that all employes
may have notice of the change, and be prepared to
purchase their coupon books for cash beginning May 1.

"That the books may be placed on sale during each
working day of the month, between the hours of 8 a. m.
and 1 p. m., and 3 to 7 p. m., and that such employes
of the Mechanical Division as may be necessary be
detailed for this purpose.

"That the books be issued on the basis of salaries
and wages, and without regard to actual earnings and
to the amount fixed by existing regulations. That a
card of identification be issued to each employe at the
time of delivering his pay receipt, or at such other time
as may be more convenient to the Mechanical Division,
this card to be good for one calendar month, a form to
be printed on the back of the identification card author-
izing a member of the employe's family to purchase
books upon presenting the card to the issuing clerk.
This plan includes the issuance of a card of identifica-
tion, good during one month, for the purchase at any
timeduring the month of all or any part of the maximum
amount of books allowed. *****

"Books to be sold only upon presentation of card by
the employe or such member of his family as may be
authorized by him, and are to be paid for in cash at
the time of application and issue.

"That the issuing clerk be responsible to the Panama
Railroad Company for coupon books and cash, and
render reports and remit cash under such regulations
as may be prescribed by the local Auditor.

"The issuing clerk shall keep a record of all books
issued, separated between gold and silver employes
and by denominations, showing the sales for each day
separately, and maintaining memoranda of the issues
by hours, and such other data as may be required from
time to time by this committee. The Panama Rail-
road Company will furnish any information required
by the committee, which is authorized to make such
changes as may be found necessary'during the three
months' trial."

It is the opinion of this committee that it
should be maintained throughout the three
months to observe from time to time the
operations, so that such difficulties as may
develop or changes as may be found necessary
can be given attention before any attempt is
made to extend the "sales for cash" method
throughout the work; and that it make further
recommendation by July 1, 1911, as to the
extension of the system.



information In Regard to Arrival of Ships.

On days when Panama railroad ships are
due to arrive at Cristobal, anyone who wishes
information with regard to the hour of docking



may procure it from any of the telephone
exchanges. This arrangement has been made
in order to relieve the wires from the extra
work entailed by handling a large number of
requests for information. The wireless sta-
tion at Colon will furnish the various ex-
changes with the information as soon as it is

received.

Civil Service Examinations.

Examination will be held, probably on
April 30, for typewriter and stenographer,
and typewriter in the Isthmian Canal service.
Men only will be admitted, who are citizens
of the United States and between the ages of
20 and 45 years.

Requests should be made at once for forms
304 and 1424, stating the name of the exami-
nation desired.

Care should be exercised in executing
applications and they should be reviewed
before filing. It is to be noted that bona fide
residence must be shown to the date of appli-
cation, and that such residence does not re-
quire continuous bodily presence, but refers
to the place at which the applicant, if a voter,
is legally entitled to exercise the right of
suffrage.

Attention is directed to the fact that cards
of admission are sent to all applicants for
civil service examinations, if found eligible.
No one should report at Culebra without such
a card of admission, or at least before having
ascertained the date on which an examination
is scheduled to be held if no card has been
received. John K. Baxter,

Secretary, Isthmian Civil Service Board.

Culebra, April 14, 1911.



Odd Fellows.

In accordance with the proclamation of
the Sovereign Grand Sire, the Odd Fellows
have arranged for a meeting in commemora-
tion of the ninety-second anniversary of the
foundation of Odd Fellowship to be held at
Cristobal Y. M. C. A. on Sunday, April 23,
at 2.30 p. m.

All members of the order now in the Canal
Zone are requested to be present, that we
may in a fitting manner return thanks for
the privileges we have enjoyed and the success
and prosperity which have attended the acts
of our beloved order during the past year.

This meeting will be open to the public and
a cordial invitation is extended to all who are
interested in the objects and work of the order
to attend.

By order of the Sovereign Grand Sire.
J. P. Meade,
Secretary, Cristobal Lodge No. 2.



Women's Clubs.

The last meeting for the year of the home
department of the Cristobal Woman's Club
was held in the clubhouse on Wednesday,
April 12. The program consisted of selections
by the Cecelian chorus, a vocal duet by Mrs.
Frank Ullrich and Mrs. J. Diers, a piano solo
by Mrs. Ullrich, and a lecture on Guatemala
by the Rev. Edward J. Cooper, rector of
Christ Church, Colon. Since the beginning
of the club year in October, the home depart-
ment has held a meeting on the fourth Wed-
nesday in each month. Programs have been
given at each meeting, among the topics
being: "Vacation notes," "The duties of a
hostess and the duties of the guest," "Tropical
fruits and vegetables," "Cooking and house-
keeping," and one afternoon was devoted to
a discussion of the duties and amusement of



young daughters in the family. Mrs. Charles
B. Butters is the chairman and the department
has 20 members.

At an election of officers held in the Pedro
Miguel Woman's Club the following were
chosen: President, Mrs. George Brown; vice-
president, Mrs. Harry Girdner; secretary,
Mrs. E. J. Brown; treasuer, Mrs. Williams.
The fortnightly business meetings will be held
as usual for the present. The next social
meeting will be at the home of Mrs. W. H.
Doyle on Wednesday, April 23.

The meeting of the Paraiso Woman's Club
was held in the lodge hall on Wednesday,
April 12. The current events program con-
sisted of papers on the Mexican trouble, the
famine in China, and the fortifications of
Cape Henry. Members are assigned special
topics at each meeting for the current events,
and discussion follows the reading of each
paper.

Obituary.
John S. Notte, employed by the Panama
Railroad Company and living in Ancon, died
at Ancon Hospital on April 13. He was 42
years of age, single, and had been on the
Isthmus six years. His home was at West
New Brighton, N. Y., where his mother is
living.

Porto Bello Crusher.

A statement of the work done at the Porto
Bello crusher, by days, for the week ending
April 15, follows:

Cubic

Yards.

April 10 6:43 2.302

April 11 7:29 2,367

April 12 7:20 3.307

April 13 7:00 3,154

April 14 — Holiday.
April IS

Total




Ancon Crusher.

A statement of the rock crushrd at Ancon
quarry during the week ending April 15,
follows:



Date.



April 10

April 11

April 12

April 13

April 14 — Holiday.
April IS



Total.



Hours Cubic
worked. Yards.



5:50
7:35



21:45



253

197
1,298
2,828

2.375



6.951



Crusher shut down, putting new eccentric into large
crusher.



The next big shoot of the Culebra Gun
Club will take place on Sunday morning,
April 23. All members are requested to
come early in order that shooting may begin
at 9 o'clock. Wm. E. Tragsdorf.



Married.

LOWE-HEGENER— At Cristobal, C. Z., on April 7,
Estelle Sylvia Hegener of Cleveland. Ohio., to Grover
Cleveland Lowe of Birmingham. Ala., the Rev. C. O.
Purdy. officiating. Canal Zone residence, Las Cas-
cadas.

A baseball game was played at Colon Park on April
14 between teams called the Commissary-Subsistence
Regulars and the Commissary-Subsistence Outlaws,
the Outlaws winning 10 to 9 in 11 innings.

The Corozal baseball team defeated the Commissary
Outlaws at Ancon on Sunday, April 9, by a score of 5
to 4.

A concert will be given by the Isthmian Canal Com-
mission Band at Culebra, C. Z., on Sunday, April 23.
1911. at 5.45 p. m.

A concert will be given at Cristobal on Sunday, April
30, 1911, at 4.30 p.m.



268



THE CANAL RECORD



Vol. IV., No. 34.



CANAL WORK IN MARCH.



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

Culebra, C. Z., April 14, 1911.

The 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 March, 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
27 working days was 3,218 cubic yards, as
compared with a daily average during Feb-
ruary of 3,135 cubic yards. The total amount
of concrete placed during the month was 86,-
884 cubic yards, including 5,697 J cubic yards
of large stone. The bucket measurement
exceeded the place measurement by 572j
cubic yards. Of the total concrete, 11,635
cubic yards were placed in the upper lock,
44,351 cubic yards in the middle lock, and
30,898 cubic yards in the lower lock. The
concrete work for the entire lock system



Work excavation, dry.
Work excavation, wet.



Total work excavation.



Plant excavation, dry.
Plant excavation, wet.



Total plant excavation..
Total Canal excavation.



Material placed in dams

Concrete placed in locks and dams.



Explosives vised

Rock drilled

Tracks removed

New tracks laid

Rock crushed

Cement used

New roads built

Water mains laid

Sewers laid

Open drains and ditches dug.

Average daily force

Average rainfall



Cubic yards...
Cubic yards...

Cubic yards...

Cubic yards...
Cubic yards...

Cubic yards..

Cubic yards...

Cubic yards..

Cubic yards...



Tons (Gross).

Feet

Miles

Miles

Cubic yards...

Barrels

Miles

Feet

Feet

Feet



Inches .



101.165
391,736



3.713
47.324



51,037



93.23



72.815



2.54



1.60



87.1(19

96.079

)4

4,478

1,7-10

28,102

6.967



2,006.376
17,711



6,436



2,032,523



272.95

454.363
21.89
26.17

376
878



965

111

150

8,645



101.247
639,761



741.008



9,974



9,974



49,071
75,889

77,055



3.45

6S.361
77.621
.66

4.737

145

818

4.349

.02



Total.



2.210.788
1.049,208



3.259,996



10,149

57.29S



67.447



3,327,443



646.918



21.89
32.16



604,233



155.S46

174,578



.70



10,180

1,996
29.070
19,961



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
62,211 cubic yards of material was removed.
Of this amount 23,265 cubic yards were exca-
vated for back fill. On March 31 the total
material removed amounted to 5,791,075
cubic yards. The shovel excavation in the
locks was 98.8 per cent completed, the channel
excavation 90 per cent completed, and the
excavation of the culvert trenches by crane,
65 per cent completed.

Back Fill — Back filling behind the walls of
the upper locks was continued. The quanti-
ty placed during March aggregated 40,515
cubic yards, increasing the total to 346,575
cubic yards. On March 31 the back fill was
28.45 per cent completed.

Receiving and Issuing Material — The re-
ceipts of rock and sand during the month were
satisfactory and exceeded the consumption.
The amount of cement consumed exceeded
the receipts by 34.265J barrels.

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

Power Plants and Pumps — The operation
of the power plant and pumps was satis-
factory 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
447.4 tons of fixed steel was placed, exclusive
of reinforcement.

Concrete Work — There was an increase of
14.780J cubic yards in the amount of concrete
laid as compared with the figures for the pre-



was 59.1 per cent completed at the end of
March.

OPERATION OF THE PERMANENT AND AUXILIARY CON-
CRETE CONSTRUCTION PLANTS, GATUN LOCKS.



Length of working day (hours) . .

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

Average number of mixers per
day

Average hourly output per mixer,
(actual working time) cu. yds.

Average amount of concrete and
large stone laid per hour, per
strand of cableway, (actual
working time) cu. yds

Large stone laid. cu. yds

Concrete laid, cableways, cu. yds.

Concrete laid, througtl chute in-
to dump cars, cu. yds

Concrete laid, crane and derrick,

cu. yds

Concrete laid, portable mixers

Total amount concrete and
large stone laid, cu. yds.. . .



Permanent Auxiliary
Plant. Plant.



8.03
6.00

58.59



34.61

5.073 J

55,066

8,206



68, 345 i



8.50



2.00
73.21



624J



8,104
1.866 \



19,111



Concrete from the auxiliary plant was placed by a
crane, five derricks, and through a chute on the east
bank of the lower lock into dump cars below and there
distributed. This chute was put into operation the
morning of March 6th.

GATUN DAM.

Construction during the month increased
the total fill,. as determined by cross sections
of the material in place, by 597,847 cubic
yards, making the total amount in place
12,873,925 cubic yards.

Hydraulic Fill — The dredges increased the
hydraulic fill by 342,800 cubic yards. The
total hydraulic fill in place on March 31 was
6,633,760 cubic yards.

Dry Fill — The material received from the
Central Division and steam shovel No. 51,
amounting to 255,047 cubic yards, was placed
on the north and south toes of the dam, east



and west of the spillway, making the total
dry fill in place 6,240,165 cubic yards.

GATUN SPILLWAY.

Excavation — In preparing foundation of the
spillway dam 1,010 cubic yards of rock were
excavated by hand, increasing the^total spill-
way excavation to 1,579,016 cubic yards.

Concrete — Construction work on the spill-
way dam was continued, and the concrete
behind the east and west coffer-dams was
practically completed to an elevation above
ordinary floods. The amount of concrete
placed during the month aggregated 8,704
cubic yards, which increased the total to
131,091 cubic yards.

HARBOR AND CHANNEL SECTION.

Excavation Below Sea-Level at Mindi — Dur-
ing the month three steam shovels removed
2,270 cubic yards of earth and 47,464 cubic
yards of rock from the Canal prism. In
addition, 9,055 cubic yards of earth were
sluiced by pumping plant.

Dredging from the Ocean to Mindi — Five
dredges removed 227,292 cubic yards of earth
and 50,105 cubic yards of rock from the
Canal prism. In addition, the dredge Mindi
removed 30,889 cubic yards of earth from the
channel between Dock 11 and Dock 14, and
17,435 cubic yards of earth in front of Dock
14. On March 31st, 40 feet of water could
be carried from zero to zero plus 1,900 feet;
35 feet to mile 3 plus 200 feet; 30 feet to
mile 3 plus 3,100 feet; 27 feet to mile 5 p u-
2,438 teet, at the junction with the French
canal.

Dredging from Mindi to Gatun Locks — The
dredge Sandpiper removed 114,339 cubic yards
of earth from the Canal prism betweeen mile
6 plus 3,130 feet and mile 6 plus 3,700 feet.

PORTO BELLO.
PERFORMANCE OF ROCK CRUSHER PLANT.

Length of working days — hours

From 1st to 31sl, inclusive 8.00

Average number of hoins worked per day. . 6.98

Average number of cubic yards per hour of

working day 403.30

Average number of cubic yards per working

hour 462.30

Maximum day's output, (7 hours 16 minutes)

cu. yds 3.737.00

Average day's output ( ' 7 days) cu. yds. . . . 3,226.00

Average hourly output, (212 hours 34 min-
utes) cu. yds 410.00

Total output for the month, cu. yds 87,109.00

SAND, STONE, AND CEMENT SERVICE.

In connection with this service plant
steamed 12,340 miles, handled 974 barges,
and carried 2,560 passengers.

TORO POINT.

Colon Breakwater — 45,483 cubic yards of
material were excavated, of which amount
3,291 cubic yards were placed in track fill,
and 42,192 cubic yards in breakwater fill.
The double track trestle was extended 488
linear feet. On March 31 the trestle extended