SALMON IN FRESH WATER 263 



N.B. It is not to be inferred by this answer 

 that salmon do not come from the deep sea, but 

 that they come thence by way of the coasts. 



5. Q. Do foulness, temperature, clearness or 

 muddiness of water, induce salmon to enter or 

 avoid the rivers ? 



A. Salmon prefer clear, full flood, and dislike 

 low, dirty, or snow water. 



6. Q. Do salmon appear to grow in size and 

 fatten rapidly whilst in the sea ? 



A. Yes ; they fatten rapidly whilst in the 

 sea. 



7. Q. In how many days or hours after 

 salmon enter the river do the sea-lice disappear ? 



A. In about three or four days. 



8. Q. Do salmon increase in size or improve 

 in quality, or deteriorate, in the Tweed after 

 entering the river ? If they deteriorate, do they 

 do so faster at one season than another ? 



A. They deteriorate very considerably in fresh 

 water, and more especially so towards the spawn- 

 ing season and in hot weather. 



9. Q. State any facts to show what is the 

 food, if any, on which salmon subsist whilst in 

 the river. 



A. With the exception of perhaps a few small 

 flies, and this is doubtful, salmon do not feed 

 during the period they spend in fresh water. 



10. Q. Are there any offensive or unusual and 



