INDEX. 
os Page. Case. 
UPPER SILURIAN — vont. 
Lower Ludlow—cont. 
Brachiopoda_- - - 119 F. 23; D. 22. 
Lamellibranchiata - - 120 F..28, 24 + D223 
Gasteropoda_ - - 121 F. 24; D. 22. 
Pteropoda - - - 122 We IX. Shelf 3; F. 24; D. 23. 
Heteropoda = - - = 123 B: seD 28: 
Cephalopoda - - - 123 WwW. Tx -, Shelf 3, 4. 
Aymestry Limestone. 
Plante - - - 124 W. IX., Shelf 4. 
Spongida - - - 124 > me 
Actinozoa - - - 125 > gy ne 
Crustacea - - - 125 F. 25. 
Polyzoa - . - 125 W. IX., Shelf 4 
Brachiopoda_ - - - 125 S5: 
Lamellibranchiata - - 126 3 
Gasteropoda_ - - - 126 is 
Heteropoda”s- - - 126 53 
Cephalopoda - - - 126 W. IX., Shelf 4. 
Upper Ludlow. 
Various large specimens - 12 W. IX., Shelf 1. 
Plantz - - - 12 3 Prittr: 
Spongida - - - 128 7 Seite 
Hydrozoa - - - 128 Zs 59 3 
Actinozoa - - - 128 _ sy hsy 
Echinodermata - - 129 3 sth 
Annelida - - - 129 53 ssi; 
Crustacea - - - | 130 and 141} F. 26; D.24; W. IX., Shelf 
5, and W. X. 
Polyzoa - - - 131 W. IX.., Shelf 6. 
Brachiopoda = - - - 131 B26, 2 3) Ds25: 
Lamellibranchiata - - 133 F. 27, 28; D. 25, 26 
Gasteropoda_ - - - 137 F, 28; D. 26. 
Pteropoda - - - 139 3 5 
Heteropoda- - - - 139 sy 5 
Cephalopoda - - - 140 W. IX. Shelf 6. 
