CAUSE OF THE PHENOMENON. 167 



" You will be so good as to show these to 



Mr. Buckland, as I would be glad to have 



such an eminent naturalist's opinion on this 



strange anomaly. 



" Peter of the Pools." 



To this — thanking " Peter of the Pools " 

 for the compliment — I replied as follows : — 



" I am exceedingly obhged to ' Peter of the 

 Pools ' for allowing me the opportunity of 

 examining these most interesting jBvsh, of 

 which, by the kindness of the Editor, outline 

 figures are given, in order that the very 

 marked difference in size between them can be 

 seen by those who have not the opportunity 

 of examining the specimens themselves. The 

 drawings are given of an accurately-measured 

 life-size. Now for the cause of the pheno- 

 menon. On Tuesday evening last, I submitted 



