[y PREFACE. 



.Mr. F. .leH'rey Bell, the nicmlicr of the permanent Museum start' wlm 

 has c.liaviie of this section of the Collection, has reiiilered every assistance to 

 'S]v. Vx'rnanl throuahout the progress of the work, Iioth in its preliminary 

 stages anil while passing through the press. 



W. H. FLOWER, 



Director. . 

 British 3Iusenm (Natural Histonj), 

 March 1896. 



