ANNUAL REPORT 



OF THE 



FISHERY BOARD FOR SCOTLAND 



Being for the Year 1909. 



IN THREE PARTS, 



Part I. — GENERAL REPORT. 

 Part Q. — REPORT ON SALMON FISHERIES. 

 Pun III.— SCIENTIFIC INVESTIGATIONS. 



PART III.— SCIENTIFIC INVESTIGATE 



/Ifcajests. 



LONDON: j 



PUBLISHED BY HIS MAJESTY'S STATIONERY OFFICE. 

 To be purchased, either directlj or through any Bookseller, from 

 OLIVEK & BOYD. Twekddale Court, Edinburgh; or 

 WYM AN and SONS, Ltd., Fettle Lane, E.C., and 



32 Abingdon Street, S.W. ; or 

 E. PONSONBY, Ltd., 116 Grafton Strket, Dublin. 



Printed by 



JAMES HEDDEKWICK & SONS LIMITED, 

 At " The Citizen Press St. Vincent Place, Glasgow. 



19 11 



[Cd. 5508.] Price Is. 8d, 



