ERRATA. 



Page 12. line 21. add " t. 6. f. 69." 

 79. line 6. omit "on." 



90, 91. 93, 94. 97, and 98. for " t. 8 " read "t. 10." 

 127. line 19. add "t. 11. f. 129." 

 133. line 3. add "t. 11. f. 130." 

 135. line 5. for "f. 24." read " f. 34." 

 139. line 7. for " 31." read " t. 11. f. 131." 

 175. line 22. for " t. 4. f. 39." read " t. 12. f. 138." 

 200. line 28. for " t. 140. f. 10." read " t. 12. f. 14O." 

 205. at bottom, erase " f. 142." 

 221. line 20. add " (t. 7. f. 77.)" 

 227. line 26. add t. 12. f. 146." 

 234. add to var. " t. 10. f. 101." a. b. d. 

 239. line 4. for " pwlustris," read " palustris. " 



X. B. As the plates were not returned from the engraver until the 

 greater part of the text was printed, there are unfortunately the above 

 errors in the references to the figures in the text, and a few references 

 to them have been left out ; but these can be easily added by the pen, 

 space having been left for the purpose. 



