ERRATA. 



Page 20, line 4: from the bottom, for peruvianus read plicatus. 



Page 31, lines 4 and 5 from the bottom, for peruvianus read plicatus. 



Page 32, line A from the bottom, for peruvianus read plicatus. 



Page 38, line 4: from the bottom, for made the type of read placed in. 



Page 77, in the first note, for Vol. III. p. 442 read ante page 56. 



Page 78, in the note, for Transactions Vol. III. read ante page 31. 



Page 83, in the note, for Vol. III. p. 416 read ante page 30. 



Page 84, line 5 from the top, for divided read undivided. 



Page 85, line 11 from the top, for Ohio read Cumberland River. 



Page 117, lines 14 and 15 from the top, for Vol. III. p. 442 read ante page 56. 



Page 117, in the first note, for Vol. IV. p. 90 read ante page 100. 



Page 117, in the second note, for Vol. III. p. 424 read ante page 38. 



Page 123, in the note, for Vol. III. p. 418 read ante page 32. 



Page 124, line 13 from the bottom, for very read rays. 



Page 127, in the note, for Vol. III. p. 431 read ante page 45. 



Page 137, lirie 12 from the top, for this read its. 



Page 139, last line, for Phrygania read Phryganea. 



Page 160, line 4 from the top, for palna read plana. 



Page 176, line 8 from the top, for Conradius read Conradicus. 



Page 199, line 9 from the bottom, for cabinet read cabinets. 



