Part 11

JANUARY. Illuminating Power in Amount of Impurity. Standard Sperm Candles. Sulphuretted Ammonia per 100 Sulphur per Hydrogen. feet, grains. 100 feet, grains. 1 20.7 None 7.4 23 0 2 21.1 „ 5.0 23.3 3 20.3 „ 4.6 ... 5 20.2 „ 7.5 23.7 6 22.2 „ 6.4 23.1 7 22.4 „ 4.6 22.1 8 22.4 „ 4.2 22.5 9 22.7 „ 3.8 21.4 10 21.9 „ 3.2 21.8 12 22.7 „ ... 22.3 13 22.2 „ 4.6 22.6 14 22.2 „ 5.0 18.4 15 22 3 „ 5.2 15.1 16 22.1 „ 5.2 20.3 17 20.2 „ 3.2 19.7 19 20.7 „ 2.0 21.0 20 21.0 „ 4.0 22.4 21 Not received. 22 19.7 „ 4.6 22.8 23 20 8 „ 2.4 23.3 24 19.6 „ 2.2 24.2 26 22 2 „ 2.4 24.0 27 Not received. 28 20.2 „ 4.0 23.6 29 20.9 „ 3.0 17.3 30 21.0 „ 2.6 24.3 31 20.5 „ 1.7 24.0 Mean 21.28 „ 4.11 21.92 FEBRUARY. 2 20.7 None 1.8 21.0 3 20.5 „ 1.6 20.8 4 22.1 „ 1.8 19.2 5 20.9 „ 1.2 18 8 6 21.1 „ 0.6 19.1 7 21.7 „ 1.2 ... 9 21.7 „ 1.2 ... 10 21.2 „ 1.4 ... 11 20.7 „ 1.2 ... 12 21.7 „ 0.8 ... 13 22.1 „ 0.6 20.6 14 22.0 „ 1.0 20 9 16 22.8 „ 1.3 19.1 17 22.9 „ 1.6 18.8 18 22.5 „ 1.2 18.8 19 22.5 „ 1.2 15.7 20 21.1 „ 1.0 15.4 21 Not received. 23 22.6 „ 0.6 16.1 24 21.3 „ 2.0 16.4 25 21.3 „ 0.6 16.8 26 22.6 „ 1.0 16.0 27 23.3 „ 1.2 19.2 28 21.1 „ 0.0 19.6 Mean 21.76 1.15 18.46 MARCH. 2 21.4 None 2.4 19.2 3 21.0 „ 0.2 10 4 4 21.9 „ 0.8 13.0 5 21.3 „ 1.0 14.5 6 22.8 „ 1.0 15.1 7 21.9 „ 1.0 15.1 9 22.1 „ 0.8 15.3 10 21.0 „ 1.4 15.3 11 21.4 „ 0.0 12.9 12 20 4 „ 1.0 14.3 13 20.9 „ 0.6 15.1 14 21.0 „ 0.6 16.4 16 21.1 „ 0.4 17.7 17 21 6 „ 1.2 17.1 18 21.5 „ 2.0 17.2 19 21.4 „ 0.8 17.5 20 21.2 „ 0.5 17.3 21 21.8 „ 1.0 17.3 23 21.9 „ ... ... 24 21.2 „ ... ... 25 21.7 „ ... ... 26 21 4 „ ... ... 27 21.0 „ 0.8 ... 28 21.4 „ 0.6 15.5 30 21.1 „ 0.8 15.7 31 22.9 „ 0.0 16.0 Mean 21.47 „ 0.86 15.63

TABLE XIV. QUARTERLY RETURN OF THE CHIEF GAS EXAMINER

Cannel Gas.

_Results of the Daily Testings of the Gas supplied by the Gas Light and Coke Company to the Testing Station at_ 123, _Ladbroke Grove_, _Notting Hill_, _during the months of April_, _May_, _and June_, 1874.

APRIL. Illuminating Power in Amount of Impurity. Standard Sperm Candles. Sulphuretted Ammonia per 100 feet, Sulphur Hydrogen. grains. per 100 feet, grains. 1 22.1 None None 17.0 2 23.0 „ „ 13.7 3 Not received 4 22.1 „ 0.4 14.2 6 Not received 7 21.7 „ 2.4 16.8 8 21.5 „ 0.6 17.8 9 22.5 „ 1.2 16.9 10 22.2 „ ... 17.2 11 22.3 „ None 17.2 13 22.7 „ 0.4 17.3 14 21.0 „ 0.4 17.3 15 21.0 „ 1.4 17.1 16 22.9 „ 0.7 17.4 17 21.6 „ 0.4 19.0 18 21.2 „ 0.2 17.9 20 22.2 „ 0.0 19.5 21 Not received 22 22.5 „ 0.2 9.5 23 22.5 „ 1.4 18.7 24 22.2 „ 0.6 18.1 25 23.0 „ 0.4 18.2 27 22 2 „ 0.0 18.0 28 22.0 „ 0.0 18.1 29 21.2 „ 1.0 15.4 30 Not received Mean 22.04 „ 0.56 17.37 MAY. 1 21.9 „ 0.2 16.6 2 21.5 „ 0.6 16.4 4 20.9 „ None 18 4 5 21.5 „ „ 18.9 6 22.0 „ „ 17.4 7 21.4 „ 0.8 17.4 8 21.4 „ None 20.2 9 20 5 „ „ 17.9 11 Not received 12 21.5 „ „ 18.9 13 21.6 „ 1.0 1 .8 14 22.0 „ 0.8 16.7 15 22.2 „ 0.2 16.3 16 20.7 „ None 17.9 18 21.2 „ 0.4 16.0 19 21.6 „ 0.4 17.3 20 21.8 „ 0.8 17.8 21 21.4 „ 0.6 17.7 22 Not received 23 21.7 „ 0.4 18.0 25 Not received 26 21.7 „ 0.6 18.4 27 21.7 „ 0.4 20.0 28 21.7 „ 0.6 19 9 29 22 0 „ 0.5 19.3 30 21.4 „ 0.6 18.3 Mean 21.53 „ 0.39 17.97 JUNE. 1 21.3 None None 17.9 2 21 3 „ 0.4 19.1 3 21.5 „ None 18.2 4 21.6 „ „ 17.8 5 22.0 „ „ ... 6 Not received 8 22.0 „ „ 17.8 9 21.9 „ „ ... 10 21.8 „ 0.8 ... 11 20.8 „ 1.2 17.7 12 20.3 „ 0.5 17.8 13 20.7 „ 0.8 17.1 15 20.6 „ 1.0 17.3 16 20.8 „ 0.6 17.3 17 21.1 „ 0.6 16.9 18 21.1 „ 0.5 16.1 19 Not received 20 Not received 22 21.4 „ 0.5 16.2 23 21.4 „ 1.0 17.4 24 Not received 25 Not received 26 Not received 27 21.4 „ 0.8 17.3 29 21.4 „ 05 17.3 30 21.3 „ 0.4 16.4 Mean 21.28 „ 0.48 17.39

TABLE XV. QUARTERLY RETURN OF THE CHIEF GAS EXAMINER.

Common Gas.

_Results of the Daily Testings of the Gas supplied by the Gas Light and Coke Company to the Testing Station at_ 123, _Ladbroke Grove_, _Notting Hill_, _during the months of July_, _August_, _and September_, 1874.