ERRATA. 

Page 5, line 4, for Limestone read Ironstone. 
” 
20, line 17, the 1st part of ‘ Mélanges paléontologiques’ is dated 1848. 
20, , 3 from bottom, for Bronn read Brown. 
21, to list of Coal-measure shells described in Brown’s ‘ Fossil Conchology,’ add Unio 
littoralis and U. diserepans. 
38. The line “ Class PeLecypopa (LaMELLIBRANCHIATA) ” should be above (not below) 
the line “ AstpHonrp® (INTEGROPALLIATA),”’ 
58, line 19, for Leicester read Derby. 
63, line 11 from bottom, for Leicestershire read Derbyshire. 
‘78, line 7 from bottom, for Bronn read Brown. 
181, line 6 from top, for Rabchester ead Ribchester. 
158, 8rd line from bottom, for bars read bands. 
Explanation of Pl. IV, 2 lines from bottom, for Leicestershire read Derbyshire. 
PRINTED BY ADLARD AND SON, 
BARTHOLOMEW CLOSE, E.C., AND 20, HANOVER SQUARE, W, 
