371 



APPENDIX. 



The following pages are intended to be filled up by the 

 field naturalist as specimens come under his observation, 

 thus providing a permanent record of the relative fre- 

 quency and average lengths of the various species in the 

 locality referred to, and a means of comparison with the 

 observations of others. 



(The author would be grateful if observers would com- 

 municate to him the result of their observations from time 

 to time.) 



