GENERAL INDEX. 



Aegoceratids, Neumayr 



Alum shale 



Ammonites — 



„ classification of, by A'Orbigny 



„ „ Hyatt 



,, „ Neumayr 



„ „ Quenstedt 



„ „ von Bucb 



,. ,, Waagen 



„ genera and species, description of 



shell, description of 



., „ Abdominal area 



,, ,, ,, side 



„ „ Body chamber 



„ „ Dorsal side 



„' ,, Lobes of septa 



„ „ „ auxiliary 



„ „ „ columellar 



„ ,, „ inferior lateral 



„ ,, ,, siphonal 



„ „ ,, superior lateral 



„ ,, Mouth border 



„ ,, ,, lappets 



„ „ Saddles 



„ „ Septa . 



,, „ Siphonal area 



„ „ Siphuncle 



Anaptychus 



Aptychus 



Arcestidse, Mujuisovics 



Bone-Bed, Aust . 

 „ Penarth 



Cephalopoda, classification of 



„ families and genera, analysis of 



,, geological range 



structure 



PAGE 



246, 267 

 . 120 



194—202 



232—237 



231,237—262 



. 193 



186—193 



230, 231 



263—483 



181,228,232 



. 219 



. 232 



227, 228, 230 



. 232 



222—227 

 225, 472 

 . 182 

 182, 227 

 219 

 . 219 

 221, 229, 230, 248, 470 

 182—186, 221, 229—231, 472, 483 

 382, 383 



. 167 

 . 166 



169—216 



204—216 



217,218 



168,169 



