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count 3 cents. Renewals: 2 to 16 c. p.
lamps at 20 to 25 cents; 32 to 50 c. p.
at 30 to $1.10, 80 c. p., $1.50. Power
from 7 cents per k. w. h. to 3 cents net.
Minimum monthly charge of 75 cents
per rated h. p. of motor from 1 to 3 h. p.
inclusive and from 3 to 10 h. p. inclusive,
$2.50 per month, and 11 to 20 h. p.
inclusive, $3 per month. Meter rental

$1 per month.
Minimum charge of $1 per month. Dis-

count 10% if paid by 15th of month.
Power 9 cents per k. w. h., with same
discount as for lighting. Renewals
free, except for tungsten lamps. No

wiring.
Discount for metered current of 2 cents

per k. w. h. if paid on or before the 15th
of the month. Renewals of 16 c. p. and
25 c. p. lamps, 25 cents each. Fans,
$1.25 per month. Power at 5 cents per
k. w. h., with discount of from 10 to
42%, according to h. p. used. Mini-
mum charge $1 per month for light and
$3 for power.

Westfield,

12 cents,

$5 per light per

month.

16 c. p. lamps, burning 7

nights per week until 11
P.M., $1.25 per month; 6
nights per week until 11
P.M., $1.15; 5 nights to 9
and 1 night to 11 P.M., $1;
4 nights to 8 and 2 nights
to 11 P.M., 85 cents; 3
nights to 6 P.M., 2 until 9
and 1 night to 11 P.M., 70
cents. Ten c. p. lamps
25% less, 20 c. p. lamps
20% more than above
rates.

Street Lighting by Municipal Plants. The statutes relating to municipal light plants prescribe that the excess of the estimated annual expense (including the gross expense of operation, maintenance and repair, interest on the debt created to pay for the plant, depreciation, sinking fund or debt requirements, and loss if any, in the operation of the plant during the preceding year) over the estimated income from sales to private consumers shall be included in the annual appropriations for maintenance and in the tax levy. For this excess, which it must thus raise by taxation, the city or town receives its street and public building lighting. In some instances electricity furnished to public buildings is metered, charged at the same rates as to private consumers, and paid out of other appropriations in the same manner as though the plants were privately owned. In some instances also specific appropriations are made for street lighting, presumably with the number and type of lamps to be supplied in view. For these reasons, while it is desirable to know from the standpoint of the city or town as a municipal corporation what it is getting for the money raised for the plant by taxation, and on a basis comparable with the cost to it of lighting its buildings and streets if served by a privately owned plant, such results can only be obtained by estimates of the electricity used in public buildings where not measured, and computations of the cost per street lamp based on the average number of lights used per day and an apportionment between different types of lamps according to the energy theoretically necessary to supply them. In the three pages following, the data used in arriving at these results and the results themselves will be found tabulated.

The second table is devised upon the theory that for all its expenditure the municipality receives only its street lighting and the income from its commercial business, and that the cost of the former to the city or town is the difference between such income and the entire cost of carrying on the business.

The following table shows the number of street lights of each candle-power installed on June 30, 1910, and the average number in use throughout the year ending June 30, 1910, with the average number of days and hours the same were burned in the municipalities named:

Street Lights - Operation.

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Ashburnham,

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Belmont,

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Braintree,
Chicopee,
Concord,

28.2

10.6 9.3

30.4 30.4

256

Danvers,

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Groton,
Groveland, :
Hingham,

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Holyoke,

10.8

30.4

65

10 298 24 16; 270 98 39 226 863 10 14 75 163 120

7 184 242 165 357

6 33

2 26 532

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19 527 796 376 31 47 35 40 164 310 11 11 150 14 30

1 12 87

3 206 505 389 43 9

អន្តខ្លួនខ្លួនខ្លួននឧទវខ្លួនទទខ្លួនខខ្ញុំទទខ្លួនខ្លួនទទខ្លួនទនខ្លួននខ្លួនខ្លួននួន

Hudson,

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Hull,
Ipswich,
Mansfield,

5.6 9.9 10.9

26.9 25.8 30.3

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32 40 40 200 1,200

40 1,200

32
1,200

40
25
32
40

60
1,200
2,400

32 60 32

40 1,200

16 32 60 5001 25

40 1,200

32 16 32 200 25 32

48 1,000

16 30 25

32 1,200

32

32 1,200

32
1,200

32
40
32

60
1,200

32

32 1,200

16 1,200

40

60 1,200

32 40 200 1,200

25

40 1,200

40 1,200

16 25 32 40 60

60 2,000

27.5

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The following table is compiled to indicate, as nearly as may be from the data available, the cost per lamp for the yenr ending June 30, 1910, of the electric street lights in the municipalities named, determined by the items shown and upon the average daily number of lights used during the year, as given in Table 8. Obviously such cost is affected by the profit or loss on the commercial business. The apparent loss in operating is the difference between the operating expense and the inocme from private consumers. Interest is computed upon the total investment at the beginning of the year, at the rate paid upon the bonds or notes, and depreciation upon the same amount at the rate of 3 per cent. The value of electricity supplied to municipal buildings is allowed at a fair amount, as determined and stated by the respective managers. Whenever the street lights are of different kinds or candle-powers, the total cost obtained in the manner indicated is apportioned to each kind, according to the amount of energy theoretically necessary under average conditions to maintain the lights at the standard candle-power.

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i Gain in operating accounts.

: Depreciation less jobbing and other income received. • Interest and depreciation here stated are the same per cent. of total interest and depreciation as electric plant assets are of the total combined plant, as shown by the books.

• Gain in operating accounts exceeds the charges stated.

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25

32
1,200
1,200

32
1,200

32
40
32

60
1,200

16

32
1,200

40
1,200

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87.5
40
500
500

40
726
40
50
40
75
450
56
40
500

50
478
40
50
250
500
100

50
500

50
500
50
68
40
50
75
75
525

6,447 45 3,162 88

14.01

6 40
80 01 4
156 015

4 95
89 80
4 50
5 62
1 43
5 275
31 635
7 86
6 18
81 01

4 53
43 39
11 45
1 22
6 09
12 18
14 08

7 04
70 36
12 18
121 78

4 37
5 92
3 48
4 35
6 53
4 85
33 92

798 932

32

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1 Gain in operating accounts.

· Depreciation less jobbing and other income received.
• Interest and depreciation here stated are the same per cent. of total interest and depreciation as electric plant assets are of the total combined plant, as shown by
the books.

• Midnight lighting.

* All night lighting.

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