ii 



CONTENTS. 



PAGE 



Herring Spawn found at Isle of May ----- xvi 



Spawn Hatched - xvi 



Commissioners conclude there are Two great Spawning Periods - xvi 

 Conclusions arrived at by Meteorological Society of Scotland as to 



Influence of Temperature, &c. - - - - - xvi 



Officers of old Board not utilised for making Investigations - - xvii 



Important Facts established ------ xvii 



1. Nature of Spawn X vii 



2. Periods of Spawning ------ xvii 



3. Food of Herring ------ xvii 



No complete Account of Structure of Herring - - - xvii 



Work of German Fish Commission ... . X vii 



Eggs of Inshore Herring Fertilised and Hatched - xvii 



Effects of Temperature on Rate of Development - xviii 



Size of Fry when Hatched xviii 



Food of Fry xviii 



Rate of Growth of Young Herring - xviii 



Whitebait Stage at Third Month ----- xviii 



Work on Development and Structure of Herring - - - xix 



Investigations by Norwegian Government - xix 



Roe found mixed with Gravel - xix 



Observations by Swedish Government - xix 



Herring Eggs Hatched by United States Fish Commission - - xix 



Fishery Board for Scotland instituted - xix 



Board appoints Committee to make Investigations - - - xx 



Gunboat applied for - - - - - - - X x 



Investigation begun on 6th August in Moray Firth - - - xx 



Nature of Work carried on ------ X x 



' Vigilant ' relieves ' J ackal ' - - - - - - X x 



Material collected - -- -- -- xx 



Reports not yet received ------ xx 



General results of Autumn's work ----- xx 



Experiment suggested for next Autumn - xxi 



Hatching should be studied in deep water - xxi 



Survey of Mussel Beds xx j 



Mussel Culture hindered by Board of Trade Regulations - - xxi 



Fishery Board should have charge of Mussel Beds - - - xxi 



Introduction of Wattles for Mussel Culture - xxii 

 Board recognises great necessity for continuing and extending 



Investigations - - - - - - - X xii 



Lamentable ignorance of Habits, &c, of Fish - xxii 



Board has large staff of Officers capable of assisting in Scientific work xxii 



Instructions sent to Fishery Officers - xxii 



The Food of the Herring X xiii 



Little Food taken during Spawning Period - - - - xxiii 



Herring feed freely after Spawning - xxiii 



Varieties and Migration of Herring - xxiii 



Want of Assistance xxiii 



Influence of Spawning Instinct - xxiii 



Specimens forwarded by Officers - - - _ X xiv 



Herring Eggs attached to Sea-weeds ----- X xiv 



Interest of Fishermen in investigations, and their experiments with 



Herring and Cod Eggs ------ xxiv 



Herring Spawning throughout the year - xxiv 



