23 



" 100 of standard colour was totally destroyed, a second 

 " 100 -was similarly bleached, and of a third 100 only 

 " 20 remained." 



On the 9th of April 16 samples of air were examined. Page 26. 



" Three samjiles taken in Edinburgh in places away 

 " from the Water of Leith, and one sample collected in 

 " Leith at a distance from the polluted stream, gave 

 " respectively the degrees of purity 80, 75, 80, and 80, 

 " and one sample taken from the harbour at the Victoria 

 " Dockhead gave 70, while the air collected under the 

 " immediate influence of the Water of Leith conveying the 

 '^ sewage of Edinburgh and Leith gave respectively 60, 

 " 60, 50, 60, 60, 55, 55, 55, 60, 50, and bb. 



" On the 14th April six samples of air were collected 

 *' and examined, when it was found that over the Water 

 '^ of Leith before mixture with sewage the degree of 

 " purity was 80, while over the sewers and the Water of 

 " Leith conveying sewage the degrees of purity were 68, 

 " 66, 70, 64, and 70. 



" In the whole course of the Water of Leith, from Pao-e 27. 

 " Coltbridge downwards, not a single fish could be seen." 



The Water of Leith at Edinburgh. 



" The condition of the Thames at London is much less Pao-e30. 

 " foul than the water of Leith as it traverses Edinburgh. 



" It will thus be observed that the Water of Leith as it p oo 

 " leaves Edinburgh contains fully ten times the quantity 

 " of organic matter which is found in the Thames at 

 " London Bridge, and necessarily the offensiveness of the 

 " water must be correspondingly greater." 



Extract from Mr. FFEN^^ ell's 4th Report, 1865, as 30th March 

 regards the pollution of Streams. Inspectors of 



Page 14 of Report.— ^^ Public attention is now so ear- p;]™'^." ^ 

 " nestly directed to this question, and public opinion so Fourth Re~ 

 " strong in regard to the necessity of mitigating the evil port. 

 " complained of, that it may not be in vain to hope that 

 '' some comprehensive measure may ere long he taken to 

 " abate a nuisance so excessive in its baneful effects, in 

 " many ways as to alarm the minds of reflecting persons 

 " who are thoughtful and watchful of the sanitary con- 

 " dition of the people, and to create apprehension that it 

 '^ is insidiously in a less apparent manner generating 



