[Report of the Medical Officer of Health for London County Council] page -

London County Council 1900

[Report of the Medical Officer of Health for London County Council]

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Table: Table 1.Particulars of the Bacteria Beds.

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Table 1.Particulars of the Bacteria Beds.

No.	Name of town or district.	Nature of installation. P.—Permanent. T.—Temporary.	Number of beds.	Distinctive number or name of each bed.	Average or working area of the beds. Square feet.	Measurement of the beds.		Depth of the beds. Feet.	Material and size of the material of which the beds are composed.	Thickness of euch layer of material, arranged in their order in the beds, from the top downwards.	Method of under-drainirg the beds.	Actual or estimated cost of making the bed'.			Actual or estimated cost per acre of making the beds.			Cost of treating sevage per million gailor.
No.	Name of town or district.	Nature of installation. P.—Permanent. T.—Temporary.	Number of beds.	Distinctive number or name of each bed.	Average or working area of the beds. Square feet.	At top. Feet.	At bottom. Feet.	Depth of the beds. Feet.			Method of under-drainirg the beds.	Actual or estimated cost of making the bed'.			Actual or estimated cost per acre of making the beds.			Cost of treating sevage per million gailor.
47	York	T	4	l	800	40 x 20	...	3	Clinker, cinder and coke, ¾ inch to 1/4 inch mesh	3 layers, the largest material at the bottom.		£	s.	d.	£	s.	d.	£	s.	d.
				2	800	40 x 20	...	3
				3	800	40 x 20	...	3
				4	800	40 x 20	...	3
		T	2	1a	...	90 x 30	...	2.75	Clinker, cinder and coke, 1 ½ inch to 3 inch mesh	Layers of coarser material at the top
				2a	...	90 x 30	...	2.75	Clinker, cinder and coke,
		T	1	Ladder filter composed		4 x 35/12	...	2	3/8 inch to 3/8 inch mesh Clinker
				of 10 chambers
		T	1	York filter	...	67.5 in diameter	...	6.5	Clinker, ½ inch to 2½ inch mesh
		T	1	Gravel	...	19½ x 111/4	...	3	Clean gravel, coarse	4½ inches
									„3/8 inch mesh	4½ inches
									„ ½ inch „	9 inches
									„¾ inch „	9 inches
									,, ½ inch ,,	9 inches