32 SALMONID.E. 



to relate, has been attended with more success than those 

 which I had previously made. The process of taking the 

 adult fish, and all the circumstances of attending the im- 

 pregnation, were entirely similar in this case to that already 

 narrated. 



" That the pedigree of the young fish may not be called 

 in question, I have preserved the skins of the parents. The 

 weight of the male when taken was sixteen pounds, and of 

 the female eight pounds. 



" The spawn was impregnated and deposited in the stream 

 immediately below the fall, pond No. 1, on the 27th of 

 January, 1837 ; the temperature of the water in the stream 

 being 40, and that of the water in the river 36. On the 

 21st of March (fifty-four days after impregnation), the em- 

 bryo fish were visible to the naked eye. On the 7th of 

 May (one hundred and one days after impregnation), they 

 had burst the envelope, and were to be found amongst the 

 shingle of the stream. The temperature of the water was at 

 this time 43, and of the atmosphere 45. It is this brood 

 which I now had an opportunity of watching continuously for 

 a length of time, that is, for more than the entire period 

 which was required to elapse from their exclusion from the 

 egg, until their assumption of those characters which distin- 

 guish the undoubted Salmon-fry. I therefore desire, even at 

 the risk of repetition, to describe their progressive growth 

 during these important and usually misconceived stages of 

 existence. But before doing so, I beg to be indulged in a 

 few miscellaneous remarks. 



"It is indeed in no way surprising that any body of sci- 

 entific men, before whom a portion of these observations on 

 the growth of the Salmon in fresh water may have been 

 previously laid, should have been slow to express a decided 

 opinion on the subject, more especially when the result of my 

 experiments goes to prove facts so opposed to what has been 



