To Sidney H. Smith, Esq., of Heworth, York, I am 

 vastly indebted for his interesting bird-nesting, cliff- 

 climbing, and wild fowling scenes. 



I also acknowledge the interesting notes of Mr. Meech 

 as to the marking of birds on the Northumberland estate ; 

 and the North Eastern Railway Company have placed 

 both pictures and matter at my disposal, for which I tender 

 grateful thanks. 



Harwood Brierley, Esq., has also permitted me to use 

 descriptive matter referring to certain birds. 



To each and all I return my hearty thanks. 



W. H. 



