$10.80 per year, fixed cost; running cost,

$12 per year, fixed cost; running cost, o cent per lamp hour.

$36 per year, fixed cost; running cost, 1% cents per lamp hour.

$10.80 per year, fixed cost; running Ten-year con-
cost, cent per lamp hour.

$36 per year, fixed cost; running
cost, 1 cents per lamp hour.

tract. 1

1 When agreements are made for a longer period than one year, a discount of 1 per cent. per year from the prices stated is allowed for each year up to 10.

8

67

5.7

25.9

$16 per year.

19

5.6

27.3

$10.08 per year.

34

$54 per year.

731

5.5

27.8

$17 per year.

28

10.8

30.2

($30 per year.

288

$87 per year.

100

5.5

27.8

$16 per year.

$17 per year.

107

6.1

27.8

$16 per year.

75

$50 per year.

199

5.5

27.8

$16.50 per year.

32

$69 per year.

Incandescents: $14.50 each per year for first 650
lamps; next 50, $14.25 each; all others, $14 each.
Arcs: 80 lamps at $80 each per year; next 15 lamps
at $79; next 15 lamps at $78 each; all others at
$70 per lamp.

Lamps burning until 1 A.M., $70 each.

$14.25 per year.

8

$70 per year.

$13.50 per year.

$14 per year. $13.50 per year.

247

10.3

30.4

$18.50 per year.

20

10.7

30.4

$30 per year.

71

10.7

30.4

$22 per year.

70

$78 per year.

5

10.5

30.4

$26 per year; 3 lamps free.

203

$100 per year.

27

7.5

30.4

$15 per year.

$70 per year.

$8,532 for 119 arcs and 57 incandescents, ten-year
contract from Jan. 1, 1898; additional arcs, $70
per year; additional incandescents, $16 per year.