[Report 1913] / Medical Officer of Health, Oldham County Borough.

  • Oldham (England). County Borough Council. nb2004302054.
Date:
1913
Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: [Report 1913] / Medical Officer of Health, Oldham County Borough. Source: Wellcome Collection.

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    TABLE No. 29. HALF-HOURLY SMOKE OBSERVATIONS, taken from December 23rd, 1912, to December 20th, 1913. Total Observations taken. No Black Smoke. Under 1 Minute. One and U nder 2 Minutes. Two and Under 3 Minutes. 3 and 4, both inclusive. Over 4 Minutes. 1575 728 239 214 284 96 14 Percentage ... 46*2 15-2 13-6 18 6-1 •9