CONTENTS. XI 



Method ; 4. Clark's Method ; 5. Helton's Method ; 



6. The. Use of deep Trays with the Williamson Hatch- 



ing Troughs 47 - 79 



CHAPTER V. 



THE NURSERY. 



Introduction. The Water. Methods of Rearing. 

 Ponds vs. Rearing-Boxes. Rearing-Boxes ; Essential 

 Points of: I. A Fall of Water ; 2. A Current; 3. Pro- 

 tection against Suction; 4. Security from Overflow; 

 5. Absence of fixed Hiding- Places ; 6. Compactness ; 



7. Protection against Outside Enemies; 8. Perfectly 

 Tight Joints; 9. Protection against Fungus. Maxi- 

 mum and Minimum Supply of Water. Arrangement 



of Rearing-Boxes. Directions for Ponds . .80-90 



PART II. 

 PROCESSES IN TROUT BREEDING. 



CHAPTER I. 



TAKING THE EGGS. 



Introduction. Preparations for the Spawning Season. 

 The Spawning Season. Appearance of the Two Sexes. 

 The First Fish up. Method of Capturing. Hold- 

 ing the Fish.- The Writer's Method. Directions 

 about Handling. Impregnating the Eggs. Russian 

 Method. Russian vs. American Theory. How to tell 

 Ripe Fish. Further Directions for Impregnating the 

 Eggs : i. Use Eggs that flow easily, and no others ; 

 2. Use good Milt and plenty of it ; 3. Make Quick Work 

 in Impregnating the Eggs ; 4. Allow the Eggs Ample 

 Time to separate ; 5. Rinse thoroughly ; 6. Practise to 

 acquire Dexterity. Closing Notes. Time of Spawn- 

 ing. Age. Number of Eggs. Effect of the Weather. 



