[Report of the Medical Officer of Health for Islington, Parish of St Mary] page 33

Islington 1874

[Report of the Medical Officer of Health for Islington, Parish of St Mary]

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Table: TABLE VII.

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TABLE VII.

	January.		February.		March.		April.		May.		June.
	New River Company's Works.	Cab Rank, Islington Green.	New River Company's Works.	Cab Rank, Islington Green	New River Company's Works.	Cab Rank, Islington Green.	New River Company's Works,	Cab Rank, Islington Green.	New River Company's Works.	Cab Rank, Islington Green.	New River Company's Works.	Cab Rank, Islington Green.
Total Solid	20.73	20.79	20.76	28.89	19.20	19.24	19.00	19.84	17.00	17.00	16.40	16.50
Chloride of Sodium	1.65	1.65	1.65	1.65	1.65	1.65	1.77	1.77	1.65	1.65	1.66	1.65
Nitrogen (aa Nitrates)	0.130	0.146	0.146	0.145	0.114	0114	0.124	0.134	0.114	0.124	0110	0.084
	0.040	0.058	0.32	0.218	0.120	0.134	0.136	0.136	0144	0.164	0194	0.204
Actual or Saline Ammonia	0.001	0.001	0.001	0.001	0.000	0.001	0.001	0.001	0.000	0.000	o.ooo	o.ooo
Organic Ammonia	0.004	0.004	0.905	0.005	0.004	00.04	0.004	0.004	0004	0004	0.003	0.005
Hardness before boiling Degrees	160	16.0	16.0	16.4	15.8	15.8	14.8	14.8	14.3	14.3	14.0	13.5
Hardness after boiling Degrees	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3
	July.		August.		September.		October.		November.		December.
	New River Company's Works.	Cab Rank Islington Green.	New River Company's Works.	Cab Rank, Islington Green.	New River Company's W orks.	Cab Rank, Islington , Green.	New River Company's W orks.	Cab Rank Islington Green.	New River Company's Works.	Cab Rank, Islington Green.	New River Company'g Works.	Cab Rank, Islington Green.
Total Solid	16.36	16.59	17.46	17.69	17.34	17.28	17.84	18.28	19.04	19.26	21.26	22.10
Chloride of Sodium	1.65	1.65	1.77	1.77	1.77	1.77	1.77	1.77	1.77	1.77	1.77	1.77
Nitrogen (as Nitrates)	0.128	O.104	0146	0.144	0.118	0116	0.098	0.146	0.148	0.166	0.166	0.128
Organic Matter	0.098	0.124	0.068	0.103	0.091	0.104	0.111	0.144	0131	0.154	0141	0.126
Actual or Saline Ammonia	0000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.001	0.002	0.001	0.001
Organic Ammonia	0.003	0.004	0.004	0.004	0.002	0.004	0.003	0.004	0.003	0.006	0.005	0.004
Hardness before boiling Degrees	14.2	14.26	14.4	14.46	14.6	14.6	14.8	15.6	15.5	15.5	16.5	15.5
Hardness after boiling Degrees	3.3	3.3	3.3	3.3	3.3	3.3	3.6	3.8	3.3	4 1	4.0	40