CONTENTS xi 



PAGE 

 - 134 



CHAPTER XVIII 



Sense of direction — Frogs and toads — Fresh-water 

 eel — ^Eels supposed to originate from horsehairs — 

 Gordius aquaticus — ^Migration of eels — Eels' sense of 

 direction — ^Eel, a sea-fish. 



CHAPTER XIX - - - - 139 



History of the salmon — Salmon, a river fish — Rela- 

 tionship of salmon and trout — " Slob " trout — Proof of 

 relationship between salmon and trout — Hybrids — Fresh 

 water essential to hatching and maintaining young 

 salmon (parr) — Similarity of appearance between young 

 salmon and trout — ^Why should salmon be attracted by 

 the baits and lures of the angler ? 



CHAPTER XX - - - - - - 144 



Salmon rising to artificial fly — Fish controlled by 

 subconscious principle — Angler takes advantage of 

 salmon's incapacity for reflection — Creatures' innate 

 sense of curiosity — Duck decoy — ^Dog used to attract 

 the birds — Sense of curiosity in birds — ^AnimaJs become 

 accustomed to innovations — Horse, a timid creature — 

 Elephant — Horse and rider in telepathic sympathy — 

 Horse prone to shy at unnatural objects — Senses of fear 

 and curiosity in some way connected. 



CHAPTER XXI - - - - 152 



Creatures attracted by unnatural appearances — 

 Curiosity aroused in cattle — Skylarks attracted by pris- 

 matic mirror — ^Animals fascinated by light — Salmon 

 attracted by light — Salmon problem — Deluding trout, 

 no mystery. 



CHAPTER XXII - - 156 



Salmon fishing, psychological point of view — Salmon 

 fly — "Snow fly" — "Jock Scott," all-round fly — 

 " Warning colours " — Salmon attracted by curiosity — 

 Salmon enter fresh water for breeding purposes only — 

 Oxygen, necessary to salmon — ^^stivation of salmon. 



