186 NEW SPECIES OF BUCEROS. 



of male and female, and, at all events, may note the changes which the 

 species undergoes in the progress to maturity. 



It is proper for me to conclude with remarking, that having no ex- 

 tensive or scientific knowledge of Ornithology, I have been obliged to 

 rely for the materials of the above description upon untutored eyes and 

 ears, sedulously employed and assisted by careful reference to Shaw's 

 Zoology. 



XI. 



