DEDICATION. 



TO GEORGE BUSK, Esq., P.R.S. 



Deak Mr. Busk, 



I request you to accept tlie dedication of this Elementary Treatise 

 on a subject which so much engaged your attention during the earlier period of youi- 

 scientific career. 



The advice and encouragement received at your hands during several years 

 past have materially aided me in the prosecution of those entozoologioal investigations 

 which form the basis of this volume ; and, but for the important series of drawings which 

 your skilful pencil and disinterested kindness have supplied, the work, as it now stands, 

 must have been deprived of one of its most attractive features. 



I am, dear Mr. Busk, 



Tours very truly, 



T. SPENCER COBBOLD. 



