796 



Directions for placing the Plates. 



Tab. 26. Mammary organs of the Kangaroo 

 27.1 



. . to face page 463 

 >• Organs of deglutition in Hydrochcerus Capybara . . 469 



28. 

 29. 

 30. 



31. Illustrations of the structure and CEConomy of Spiders . . 485 



32. Fungia agariciformis and Paumotensis 498 



33. Paussidse 679 



Organs of fecundation in Asclepias purpurascens, phy- 



35. 

 36. 



tolaccoides and curassavica 733 



The Binder is requested to observe, that as a general Title-page and a 

 Table of Contents for the whole Volume are now given, the Title-pages 

 to the separate Parts, and the Tables of Contents for Parts I. and II. are 

 to be cancelled. 



END OF THE SIXTEENTH VOLUME. 



