31 17.1 „ 0.6 16.5 Mean 17.13 „ 0.50 18.76 AUGUST. 1 16.8 None 0.3 15.7 3 Not received 4 17.0 „ 0.8 17.0 5 16.6 „ 0.6 17.2 6 16.6 „ 0.6 17.4 7 17.2 „ 0.0 17.1 8 16.9 „ 0.6 16.9 10 16.9 „ 0.4 18.5 11 16.9 „ 0.4 18.1 12 16.5 „ 0.0 18.5 13 16.8 „ 0.4 18.4 14 16.9 „ 1.0 18.8 15 16.7 „ 0.4 8.4 17 16.5 „ 0.6 18.6 18 16.1 „ 0.3 18.1 19 16.4 „ 0.4 17.6 20 16.3 „ 0.5 17.5 21 Not received 22 16.5 „ 0.5 17.4 24 16.9 „ 0.6 19.8 25 16.5 „ 0.0 19.7 26 16.5 „ 0.0 18.4 27 16.9 „ 0.0 17.7 28 Not received 29 16.4 „ 0.0 ... 31 17.3 „ 0.0 ... Mean 16.70 „ 0.37 17.93 SEPTEMBER. 1 16.8 None ... ...