E R II AT A. 
Page 4, col. 2, line 6, for fig. 6, read 10. 
Page 18, line 23, for Parkensoni, read Parkinsoni. 
Page 34, col. 2, line 21, for iV., read Bellerophon. 
Page 38, lines 1st and 3rd, for tenufascia, read tenuifasc-ia. 
Page 64, col. 2, line 8 from bottom, for 8, 0, read 7. 
Page 70, line 5, after fig. 9 add 22, and line 8, after 28 add 29. 
Page 71, line 11, for P., read Paludina, and line 11, for 34, read 
29 ; ditto, 6tli line from bottom, for G, read 26. 
Page 74, line 2, for XXXVII.* fig. 15, 16, read XXI.* 38, 39, and 
71, and line 17, for XXXVII.* fig. 17, 18, read XXXI.* 
fig. 40 and 74. 
Page 78, col. 2, line 33, for 39, read 23, 24. 
Page 79, line 1, for pucilla, read pusilla, and lines 1, 14, 36, 48, for 
XXXVII.* read XXI* 
Page 80, col. 2, line 42, for 24, read 26. 
Page 108, line 28, for 29, 30, read 27, 28. 
Page 110, lines 39, 47, 51, for Cardoc, read Caradoc. 
Page 111, lines 29, 30, for LI., 30, 31, read LII., fig. 2. 
Page 112, lino 1, and col. 2, lines 39 and 45, for Spirifer, read 
Atrypa. 
Page 122, col. 2, line 14, after LIII. add *. 
Page 124, line 33, for Leptsena, read Productus; col. 2, line 21, 
for 2, read 8. 
Page 125, line 26, for 17, read 18; line 36, for 16, read 17. 
Page 127, line 11, for LV.* read LIV.* 
Page 128, line 5, add 3. 
Page 129, line 40, for 3, 4, read 6, 7; line 48, for LVI.* read 
LIV.*; line 49, dele 3, 4 ; col. 2, line 47, for 9, read 8. 
Page 131, line 2, for 6, 7, read 4, 5. 
Page 132, line 41, dele *; for 5, read 19 ; col. 2, line 49, add, and 36. 
Page 134, line 2, for 8, read 9; liue 24, after LIV. add *; col. 2, 
lines 5, 16, 22, and 46, after LV. add *. 
Page 136, line 14, dele *, and for 40, 41, read 26; line 50, after 80 
add 81; line 58, dele 16 and add 18. 
Page 138, col 2, line 55, for 13, read 14. 
Page 139, col. 2, line 37, for 20, 21, read 26, 27. 
Page 140, last line, for Skepcv, read Shcpey. 
Page 142, line 25, add pi. LVI., fig. 91. 
Page 144, for Loudon, read London ; col. 2, line 49, dele *. 
Page 145, line 4, dele * and add I. 
Page 147, col. 2, line 17, dele 6, 7. 
Page 158, line 52, for 30, 31, read 29 and 32. 
Page 177, line 1, after f. 23, add 24. 
Page 179, liue 10, after LXXII. add *. 
Page 180, line 10, for LXXIIL, read LXXIV.; line 51, for 
Waltens, read Walters; line 16, for Austicei, read Ansticei. 
Page 184, col. 2, line 39, for 55, read 52. 
Page 185, lino 27, for 19, read 29. 
Page 187, line 58, after fig. add 78. 
Page 191, col. 2, liue 22, after f. add 31. 
Page 193, line 35, add 38 ; lines 43, 44, for Radis, read Rudis. 
Page 195, line 53, for pucillus, read pusillus. 
Page 197, line 50, for 5, read 8. 
Page 200, line 26, add 26 ; col. 2, lino 3, for 16, read 18. 
Page 201, line 46, after LXI.* add **. 
Page 202, line 18, dele and 25; line 32, for 12, read 18. 
Page 203, col. 2, line 48, dele 1. 
Page 204, col. 2, line 11, for LXXIV., read LXXXIV.; line 12, 
add 3. 
Page 208, line 33, for XXXV., read LXXXV. 
Page 209, line 13, for LXXXIIL, read LXXXIV.; line 43, for 
LXXVI., read LXXXVI. 
Page 212, line 53, for 33, read 25. 
Pago 217, col. 2, line 37, for 47, read 43. 
Page 221, col. 2, line 39, for XC., read XCI. 
Page 222, line 14, for 89, read 8—9 ; line 30, add 20 ; last line, for 
25, read 28. 
Page 223, col. 2, line 37, for 8, read 21. 
Page 224, col. 2, line 1, for Deltoide, read Dcltoidea. 
Page 226, col. 2, line 26, for 53, read 52. 
Page 228, lines 36, 38, for Augustata, read Angustata. 
Page 236, line 6, for fig. 5, read 34, 35, 36 ; line 14, for 36, read 
38, and for 45, read 46 ; line 20, after fig. add 14, 15, 16. 
Page 237, line 20, for 49, read 50. 
Page 241, col. 2, line 17, for 28, read 16. 
Page 243, col. 2, line 26, for 76, read 70 ; line 40, for 7, read 61. 
