PLATES. 



Plate 1, accompauyiug Prof. VerriU's Paper, explauatiou on page 

 50, and repeated with some changes on page 330. 



Plate 2, accompanying Prof VerriU's Paper, explanation on page 50. 



Plate 3, accompanying Prof. VerriU's Paper, explanation on page 

 330. 



Plate 4, (marked and referred to as Plate 15) accompanying Mr. 

 Hyatt's Paper, explanation on p. 232. 



EERATA. 



Page 12, line 19, for groelandicns read. G^-o&nlandicus. 



Page 115. In describing the fruit of Cocculus Feeeandianus, 

 its dimensions are given as "about 2' [inches] in diameter." It should 

 read about 2" [lines] in diameter. 



