[Report of the Medical Officer of Health for London, City of ] page 11

City of London 1951

[Report of the Medical Officer of Health for London, City of ]

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Table: S ummary N o. 1SUMMARY OF TREATMENTS FOR DESTRUCTION OF RATS IN SEWERS.D ecember, 1943 — December, 1950

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S ummary N o. 1

SUMMARY OF TREATMENTS FOR DESTRUCTION OF RATS IN SEWERS.

D ecember, 1943 — December, 1950

	No. of Entrances	No. Baited	%Pre-Bait "Takes" of Baited Entrances					Entrances Poison Baited	% Poison Bait " Takes					Estd. Kill
	No. of Entrances	No. Baited	Full	Good	Small	Total	No Takes	Entrances Poison Baited	Full	Good	Small	Total Takes	No Takes	Estd. Kill
Dec., 1943	442	427	43%	32%	11%	77%	23%	355	4%	22%	40%	66%	34%	3,290
Jan., 1945	442	419	45	9	10	64	36	267	2	31	52	85	15	3,096
June, 1945	442	422	12	12	14	39	61	165	1	29	56	86	14	1,822
Jan., 1940	442	432	24	8	2	34	66	148		16	64	80	20	1,113
May, 1940.	442	429	15	7	4	26	74	111		21	58	79	21	997
Dec., 1940	442	425	21	9	5	35	65	148		30	60	90	10	800
May, 1947	442	415	20	8	3	31	69	127		21	70	91	9	502
Dec., 1947	442	420	22	8	2	32	68	135		25	57	82	18	725
May, 1948	442	418	15	10	3	38	62	118		22	55	77	23	730
Dec., 1948	442	427	39	6	4	49	51	208		27	47	74	26	1,342
May, 1949	442	417	35	7	2	44	56	182	2	21	47	70	30	1,254
Dec., 1949	442	426	34	4	2	40	60	173		28	37	65	35	1,507
May, 1950	442	415	42	7	1	50	50	213		32	42	74	26	1,488
Dec., 1950	442	423	44	7	2	53	47	225		30	38	68	32	1,450