VIU PREFACE. 



"Wliile Mr. J. Willis-Bund, m.a., has given me the opportunity of 

 investigating some Cardiganshire streams, and furnished me with 

 considerable information during the progress of ni}- work through 

 the press. ]\Ir. Andrews has likewise helped me in my inquiries 

 at his famous fish-farm at Guildford. 



In short, many whose names will be found mentioned through- 

 out this work, have assisted me in various ways, and to all of 

 whom I tender my hearty acknowledgments. 



Likewise I have to give my sincere thanks to my old and valued 

 friend A. C. Brisbane Neill, Esq., of the Madras Medical Service 

 (retired), for his invaluable help in carrying this work through 

 the press. 



Cheltenham, 



September I5th, 1887. 



