12 PEE FACE. 



Mr. Yarrell has put into my hands "The An- 

 nals and Magazine of Natural History for Feb. 

 1843," containing an account of Mr. Young's 

 experiments on the growth of salmon I have 

 inserted an extract in the Appendix, for the 

 benefit of those who are interested in the 

 subject. 



I hope I am correct in saying that, judging 

 from the outline, my statements will agree 

 with Mr. Young's experiments. This, how- 

 ever, will be more accurately seen when the 

 Proceedings of the Royal Society of Edinburgh 

 are published. 



