DEDICATION. 



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



Deak Mk. Busk, 



I request you to accej)t the dedication of this Elementaiy Treatise 

 on a subject which so much engaged your attention during the earher period of your 

 scientific career. 



The advice and encouragement received at your hands during several years 

 past have materially aided me in the prosecution of those entozoological 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. SPBNCEE, COBBOLD. 



