. 
46 Transactions.— Miscellaneous, 
we find it stated in the appendix of their Report that— 
Lzzps has a population of 291,580, covering an area of 21,572 acres. 
But the town at present sewered covers only about 4,900 acres, with a 
population of 245,600, thus showing a population of 50 to the acre, while 
Glasgow has 88:6. The average mortality for the five years—1871 to 1875 
inclusive—is 27:4 per 1,000. The number of water-closets in Leeds is 
8,500, and of ash-pits and privies 13,000, and about 3,000 of the latter are 
provided with pails or boxes. Many of the privies have been recently 
altered into trough water-closets, which are highly approved by Dr. Goldie, 
the Medical Officer of Health. Originally experimental works were erected 
to test the efficacy of the A, B, C process, which was in the hands of a 
Native Guano Company. These works cost about £10,000, and were con- 
structed to treat 2 million gallons of sewage daily. The success of the 
experiment, so far as producing an apparently good effluent, induced the 
Corporation to erect works for the chemical treatment of the entire sewage 
of the town, amounting to nearly 14 million gallons daily, which cost 
£50,000; but since the works have been in operation practically, it has 
been found impossible to dispose of the produce in any quantity. As 
regards undried sludge the farmers in the vicinity refuse to accept it as a 
gift. 
Braprorp has a population of 173,000 and covers an area of 7,221 acres, 
giving a density of population equal to 24 per acre. The average death- 
rate is 26:1 per 1,000. The number of water-closets is about 2,000, and 
of dry-closets 3,000. The works for the purification of the sewage are at 
Manningham, about 1} miles from the town. The sewage amounts on an 
average to 9 million gallons per day, and the precipitant used is lime. The 
quantity employed is about 18 cwt. per million gallons of sewage. The 
works cost £65,000, and cost of working £5,000 per annum. 
Harrrax, a town of 68,500 inhabitants, occupies an area of 3,768 acres, 
giving a density of population equal to 18 per acre. ‘The average mortality 
is 26:6 per 1,000. The town contains 2,000 water-closets and about 
8,300 dry-closets. The sewage amounts to 24 millions of gallons (per 
diem), and is carried in a culvert to a small beck or burn, which runs through 
the valley in which the town is situated. Formerly lime was used to : 
defecate the sewage, but this attempt at purification has ceased. The Goux 
system is here adopted for the dry-closets. Once worked by a company, 
but at a heavy loss, the Corporation now carry on the works. 
Croypon has a population of 63,000, and occupies a space of 10,000 
acres, giving a density of population equal to 6:8 per acre—the average 
annual mortality being 19 per 1,000, The sewage in dry weather amounts 
