To the Editor of the supply was quite as cheap as gas, repeated Fement made some years azo by Me.
H. Preece, that "Electricity at 61. per way the equivalent of giv ut $1.50 per 1,00) cubic feet." This statement is quite out of date, Tironzh the medium of your paper T should like in as few wards as possible put the trae comparison of prices ity Shanghsi before the public.
The price of the electric current in hai is 20 tael cents or slightly over per unit, The price of gas is $1.80 per 1,000 cubic feet.
Que unit of electricity will give a light of 16 candles for 17 to 20 hours, One foot of gus will give a light of 17 candles for one hour. But 40 as to give electricity every benefit, and to make com:
son easier, we will say 16 candles, renty feet of yas. then, will give a light of 16 candles for 20 hours at a cost of 3.6 cents, Erectricity, 16 candles 20 hours 1 unit, 27.0 cents, Gas, 16 candles 20 hours 20 c.-ft, 3.6 cents, The electric light would therefore have to be sold at 3.6 dollar cents per unit to he the equivalent of gas at $1.80 per 1,000 cubic feet.
The following table published in England gives the comparisons between the cost of incandescent electric light and gax lighting by most recently improved methods, gas being reckoned ut 25 candles per foot, The comparison was for a light Of 100 candles maintained for 1,090 hours, with gas at 3s, 11d. per 1,000 cub, ft, cas.
4,000 cub. feet at 3/L1=,
Text read from the printed page and cleaned; old type leaves the occasional error.