17 



recording the destruction of smolts particularly again this season, 

 and to direct attention to what I stated in the last report as to 

 taking steps to ameliorate a condition of things which is threaten- 

 ing to bring the Tyne to an end as a salmon river. I should like 

 to urge that managers of works on the banks of the Tyne and its 

 tiibutaries in the Newcastle area should endeavour to minimise 

 the discharge of deleterious effluents and the deposition on the 

 banks of poisonous products, such as gas lime, until the time arrives 

 when some combined action can be made to restore the river to 

 a cleaner condition. 



It will be noted that the salmon and trout smolts exhibit 

 a significant difference as regards size. The difference is borne 

 out by detailed measurement and morphological detail. 



