TWENTY-THIRD 
AN EAL REPORT 
OF THE 
FISHERY BOARD FOR SCOTLAND, 
Being for the Year 1904. 
IN THREE PARTS. 
Part I.—GENERAL REPORT. 
. Part IIL—REPORT ON SALMON FISHERIES. 
Parr III,—SCIENTIFIC INVESTIGATIONS. 
PART III.—SCIENTIFIC INVESTIGATIONS. 
Presented to both houses of Parliament by Command of His Majesty. 
GLASGOW: 
PRINTED FOR HIS MAJESTY’S STATIONERY OFFICE 
By JAMES HEDDERWICK & SONS LIMITED, 
Av ‘*THe Crrizen Press,” St. VINCENT PLACE. 
OLIVER & BOYD, EprnsurcGH ; or 
WYMAN & SONS, Lr., Ferrer Lane, E.C., and 
32 Apinepon STREET, WESTMINSTER, S.W. ; or 
E. PONSONBY, 116 Grarron Street, DUBLIN. 
1905. 
[Cd. 2596.] Price 3s. 1d. 
