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The installation of the electrical appliances for operating the various gate machines was completed during the year. The total amount expended was $207,653.42, of which $132,326 were paid out under the contract and the balance for installation.

Rising stem valves. The placing of the valves, stems, roller trains, and crossheads remaining to be done at the close of the last fiscal year was completed and the 116 machines required for their operation were erected and the electrical installation completed. Of the machines placed during the year 5 were at Gatun and 28 at Miraflores, making a total of 56 at Gatun, 24 at Pedro Miguel, and 36 at Miraflores. The mechanical and electrical work in connection with the installation of these machines was completed at Gatun on February 12, 1914, at Pedro Miguel on March 30, 1914, and at Miraflores on March 30, 1914.

Guard valves. At the end of the fiscal year all guard valves and machines were erected in place at all the locks except at Miraflores. The six at Gatun were completed on April 25, 1914, six at Pedro Miguel on June 29, 1914, and those at Miraflores were 62 per cent completed at the close of the fiscal year. The tests made of the guard valves showed that the machines would not operate satisfactorily as originally designed, and a number of changes were made necessary. The most important ones consisted in providing an outboard bearing to the pinion shaft, which overcame the tendency of the pinion to get out of line with the main spur gear, and guide shoes for weights in the counterweight pits to overcome the slight eccentric load due to the weight of the roller train.

The amount expended on the rising stem and guard valves and their machines to the close of the fiscal year was $1,508,735.59, of which $1,127,725.38 were paid under the contract and the balance for installation.

Auxiliary culvert valves.The mechanical and electrical work in connection with the installation of these valves and their machines was completed during the year, four machines being installed at Gatun and completed on March 10, 1914, four at Pedro Miguel completed on March 5, 1914, and four at Miraflores completed on March 31, 1914. The cost of the machines in place was $22,805.80, of which $16,062.84 were paid under the contract and the balance for installation.

Cylindrical-valve machines. The setting of all the cylindrical valves was completed during the previous fiscal year and 41.6 per cent of the electrical work had been finished. The total cost for the machines aggregated $228,222.04, of which $161,290.79 were in payment of contracts for furnishing material and the balance for installation. During the year the remaining electrical work was completed on the 60 at Gatun on March 30, 1914; on the 20 at Pedro

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THE PANAMA CANAL.

installation of the electrical appliances for operating the
gate machines was completed during the year. The tota
expended was $207,653.42, of which $132,326 were paid out
ne contract and the balance for installation.
y stem valves.- The placing of the valves, stems, roller train
ssheads remaining to be done at the close of the last fiscal
5 completed and the 116 machines required for their operation
ected and the electrical installation completed. Of the mi-
laced during the year 5 were at Gatun and 28 at Miraflores
a total of 56 at Gatun, 24 at Pedro Miguel, and 36 at Min:
The mechanical and electrical work in connection with the
con of these machines was completed at Gatun on February
. at Pedro Miguel on March 30, 1914, and at Miraflores on

), 1914.

valves.-At the end of the fiscal year all guard valves and 5 were erected in place at all the locks except at Miraflores tGatun were completed on April 25, 1914, six at Pedro Miguel 29, 1914, and those at Miraflores were 62 per cent completed ose of the fiscal year. The tests made of the guard valres hat the machines would not operate satisfactorily as origi igned, and a number of changes were made necessary. T): ortant ones consisted in providing an outboard bearing to i shaft, which overcame the tendency of the pinion to get out th the main spur gear, and guide shoes for weights in the eight pits to overcome the slight eccentric load due to the the roller train. lount expended on the rising stem and guard valves and hines to the close of the fiscal year was $1,508,735.5), 127,725.38 were paid under the contract and the balance ation. ry culvert valves.The mechanical and electrical work zion with the installation of these valves and their ma

completed during the year, four machines being installed and completed on March 10, 1914, four at Pedro Migiel on March 5, 1914, and four at Miraflores completed of 1914. The cost of the machines in place was $22,805.82 16,062.84 were paid under the contract and the balance for

Miguel on January 27, 1914; and on the 40 at Miraflores on February 27, 1914.

Chain-fender machines.-After the tests had been completed on the two sample chain-fender machines, the results indicated that they would carry out the work for which they were designed and arrangements were made to order the balance of the equipment. Of the 16 to be erected at Gatun, the mechanical work on 14 was completed with the exception of the chains; of the 16 at Pedro Miguel, the mechanical work on 7 was completed with the exception of the chains; and at Miraflores, of the 16, the mechanical work on 1 was completed with the exception of the chains. Work was in progress on all the units, with the exception of the 4 lower ones at Miraflores, where no work had been done. The electrical work, so far as practicable, progressed with the mechanical work. The manufacture of chain for the fenders has progressed rather slowly, but orders were placed for all the chains required, with one exception, before the close of the year. The total amount expended thus far was $830,726.89, of which $661,140.30 was for payments under the contract for delivery of the material, and $169,586.59 for erection.

The cost of inspecting the lock-operating machinery to June 30, 1914, was $167,926.06.

Spillway gates.—The spillway gates were placed in position by the construction divisions in connection with building the spillway dams. The mechanical equipment and electrical installation were completed on the 14 machines at Gatun on December 18, 1913. At Miraflores the mechanical work was completed on the 8 machines on October 13, 1913, and the electrical work on June 5, 1914. The spillway gates at Gatun have all been operated satisfactorily under full head, controlled from a switchboard in the hydroelectric station. The tests of the Miraflores gates indicated defects in the mechanical work, necessitating overhauling and correction. These changes were not completed at the close of the fiscal year. The total amount expended was $337,529.11, of which $236,045.26 were expended under the contract, and the balance for inspection and erection.

Towing-track material.-All the towing-track material purchased under the original contract was delivered previous to June 30, 1913. During the year tests with the locomotives brought out the fact that it was necessary to provide additional rack sections at the top and bottom of all inclines at the locks, and 606 feet of additional rack sections were made at the Balboa shops. At Gatun Locks 1,182 linear feet of rack section were laid, 3,438 linear feet concreted in, and a total of 4,082 linear feet completed, making a total completed to date of 22,185 linear feet. At the Pedro Miguel Locks 1,518 linear feet of track were laid, 3,901 linear feet concreted in, making a total

1.

cal-valve machines. The setting of aļl the cylindrics

completed during the previous fiscal year and 41.6 per electrical work had been finished. The total cost for the ggregated $228,222.04, of which $161,290.79 were in par ntracts for furnishing material and the balance for ir

During the year the remaining electrical work was on the 60 at Gatun on March 30, 1914; on the 20 at Pedro

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of 13,696 linear feet completed to date. At Miraflores Locks 4,007 linear feet were laid, 8,160 feet concreted in, making 9,104 linear feet completed during the year, or a total to date of 18,144 linear feet. Of the total amount to be completed, 54,365 linear feet, 99.3 per cent were completed at the close of the year. Conductor-slot material, consisting of steel and copper conductor rails, insulators, brackets, and cover plates, was laid, and during the year 12,485 feet were completed, or a complete total to date at Gatun Locks of 45,084 linear feet; at Pedro Miguel 21,760 feet during the year, or a total to date of 36,292 linear feet; and at Miraflores 22,232 feet during the year, or a total to date of 28,162 linear feet. For the conductors copper tee rails were used for all towing tracks, inclines, and crossovers, steel conductors being used on the return track. The installation of single and double crossovers and turnouts was completed during the year at all the locks. The total cost of all towing-track material installed was $1,182,044.06, of which $767,173.93 were expended under the original contract and $414,870.13 for inspection, installation, and chipping of the rack rails.

Towing locomotives.-As noted in the last annual report, a contract was entered into with the General Electric Co. for furnishing 40 towing locomotives of their design and manufacture, the first locomotive to be delivered by January 15, 1914, and four locomotives each month thereafter. Twenty-one locomotives have been delivered and are in operation. The total cost under the contract is $527,015 and there have been expended $301,859.21 on the contract and $22,329.40 for erection and alterations to the machines after their receipt. Tests so far made by actual service have not been sufficient to warrant an announcement that they are entirely satisfactory.

Illumination of the locks.The exterior lighting of the locks was described in the previous annual report. The exterior lighting circuits at all the locks were completed except for five posts at Miraflores, where the erection of the posts has been delayed by the sand operations which were transferred to this point from Balboa to allow for the construction of the terminal docks. There were installed at Gatun 206 standards, 116 single arm and 90 double arm; at Pedro Miguel, 130 standards, 80 single arm and 50 double arm; at Miraflores, 163 standards, 96 single arm and 67 double arm. Suitable sockets, with lights, were installed for illuminating the operating tunnels and valve wells. The total amount expended to June 30, 1914, on the electrical lighting equipment of the locks was $126,234.52.

Remote control.—The General Electric Co. was awarded the contract for furnishing the lock-control switchboards for Gatun, Pedro Miguel, and Miraflores Locks. The original specifications of the Commission were departed from as to the general construction of the board and also with regard to the method of accomplishing the re

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5 linear feet completed to date. At Miraflores Locks 4,00 quired interlocking of the control switches. The detail design of the eet were laid, 8,160 feet concreted in, making 9,104 linear board was left entirely to the contractor, the work being subject to pleted during the year, or a total to date of 18,144 linear the approval of the Commission's inspector in the United States. f the total amount to be completed, 54,365 linear feet, 992

The switchboards are located on the second floor of the control houses were completed at the close of the year. Conductor-slot ma- and the interlocking racks on the mezzanine floor. The boards are onsisting of steel and copper conductor rails, insulators designed to represent the locks in miniature, all machines being repre

and cover plates, was laid, and during the year 12,485 fer? sented by individual control switches, and wherever it is important apleted, or a complete total to date at Gatun Locks of 45,00! for the operator to know the exact position of the machines being et; at Pedro Miguel 21,760 feet during the year, or a total controlled indicators are provided which operate in synchronism f 36,292 linear feet; and at Miraflores 22,232 feet during the with the machines in the lock wall tunnels. With the exception of

a total to date of 28,162 linear feet. For the conductor the cylindrical valve, auxiliary culvert valve, and miter forcing ee rails were used for all towing tracks, inclines, and cros machines the operator is provided with means for having definite del conductors being used on the return track. The installs information with regard to the exact position of the valve or machine single and double crossovers and turnouts was complete being operated by means of synchronous indicators, electrically conhe year at all the locks. The total cost of all towing-track nected, with transmitting devices mechanically connected with the

installed was $1,182,044.06, of which $767,173.93 were er large machines in the lock tunnels. The operation of the cylindrical inder the original contract and $414,870.13 for inspectice valve, auxiliary culvert valve, and miter forcing devices is indicated ion, and chipping of the rack rails.

by use of red and green lamps on the control board. Arrangement g locomotives.--As noted in the last annual report, a on is also made on the switchboard by which the water levels in the s entered into with the General Electric Co. for furnishing lock chambers are indicated to the operator. The control board was ng locomotives of their design and manufacture, the fire completed at Gatun on May 9, 1914; at Pedro Miguel on June 26, ve to be delivered by January 15, 1914, and four locoinotire 1914; and at Miraflores on June 25, 1914. The switchboards of all 1th thereafter. Twenty-one locomotives have been delivered the locks have been satisfactorily used for remote control of the in operation. The total cost under the contract is $527.00 lock operations. The total cost of all lock-control switchboards was re have been expended $301,859.21 on the contract as $108,079.50, of which $73,693.33 were paid out under the contract 0 for erection and alterations to the machines after their for the material, the balance representing expenditures for installaTests so far made by actual service have not been suf warrant an announcement that they are entirely satisfactory Hydroelectric plant.—The erection of the hydroelectric station nation of the locks.---The exterior lighting of the locks w continued under the Atlantic division until September 8, 1913, when

in the previous annual report. The exterior lighting ci the work was transferred to the building division of the quarterall the locks were completed except for five posts at Mirt master's department. With the exception of the doors and some of here the erection of the posts has been delayed by the sur. the carpenter work, the building was completed at the close of the es which were transferred to this point from Balboa fiscal year at a total division cost of $325,457.08. The installation · the construction of the terminal docks. There were of the equipment was continued during the year and was turned over Gatun 206 standards, 116 single arm and 90 double am to the operating force on June 18

, 1914, without tests, which were Miguel, 130 standards, 80 single arm and 50 double arm: made subsequently, and after correction of some of the defects the s, 163 standards, 96 single arm and 67 double arm. Su plant took over the load from the Gatun steam plant on July 13, ets, with lights, were installed for illuminating the operatin

. 1914. The amount expended on the installation of the machinery nd valve wells. The total amount expended to June 3 ze electrical lighting equipment of the locks was $126,234.6

In connection with the power-transmission system there were concontrol. The General Electric Co. was awarded the cream

structed underground duct lines from the hydroelectric power house furnishing the lock-control switchboards for Gatun, Pedas

at Gatın to the locks and to the transformer substation at the point, nd Miraflores Locks. The original specifications of

at a division cost of $78,688.08; and from the Miraflores transformer on were departed from as to the general construction of the

substation to the Pedro Miguel and Miraflores Locks at a division also with regard to the method of accomplishing the r

tion and inspection.

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was $300,355.60.

cost of $108,005.82.

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As noted in the previous annual report, it was decided to install for the transmission line an overhead system of 44,000 volts, extending from Balboa to Cristobal, and connecting the existing Miraflores steam-power station with the Gatun hydroelectric station, so that they may be operated separately or in parallel as necessary. Four substations are provided, located at Cristobal, Gatun, Miraflores, and Balboa. The excavation for the Gatun substation was begun on November 26, 1913, and the steelwork, furnished and erected under contract, was completed on February 19, 1914. The installation of the electrical equipment of the building has been governed by the progress made in building construction and at the close of the year was 37 per cent completed. The total amount thus far expended on the building is $145,717.92 and on the installation of the machinery $40,818.11. The Cristobal substation was installed for the purpose of furnishing power required by the coal-handling plant, the Mount Hope pumping plant, and the miscellaneous requirements in the vicinity of Cristobal. Excavation for this structure was begun on March 4, 1914, and the erection of the steelwork under contract was completed on May 6, 1914. The amount expended on the building construction was $111,858.01 and on the electrical installation $8,557.96. The Miraflores substation is being installed for the purpose of caring for the power requirements of Miraflores and Pedro Miguel Locks, and also for the purpose of serving as a step up transformer station for Miraflores steam plant. The foundation work was commenced on October 29, 1913, and the steelwork under contract completed March 9, 1914. The electrical equipment is 22 per cent completed. The amount expended thus far is $155,532.20, of which $103,509.04 were for building construction and $52,023.16 for electrical installation. The Balboa substation was located for the purpose of supplying power to Balboa shops, the air-compressor plant, dry-dock pumping plant, coal-handling plant, and Ancon pumping plant, as well as other local purposes. Work was begun on this substation on April 27, 1914, and the steelwork erected under contract was completed on June 27, 1914. Four per cent of the electrical equipment was installed. The total amount- expended thus far is $49,173.84, of which $45,565.12 were for building construction and $3,608.72 for electrical installation. In order to supply power to the power house of the Darien wireless station, being constructed by the canal authorities for the Navy Department, arrangements have been made to install a small substation of 400-kilowatt capacity, tapping the transmission line and stepping the voltage down to 440 volts. Change in the location of the pumping plant from Miraflores to Gamboa has necessitated the installation of a substation at this location. In order to supply the necessary power in connection with the pumping plant, arrangements were made for the installation of two

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