CORRECTIONS TO THE PAGES FRONTING THE PLATES. 



INTRODUCTION. 



Plate IV, fig. 9. 

 For "calcified," read "decalcified." 



Plate V, fig. 3. 



For "(Triassic)," read "Jurassic." 

 Fig. 10. For "Thecidium pumila," read " Thecidium Mediterranean!." 



Plate IX. 

 For " Spondylobus craniolaris," read " Spondylolobue craniolaris." 



PART I. 



Plate I. 



For " Lingula Dumontieri," read "Lingula Dumortieri." 



For " Orbicula lamellosa ?" read " Discina lamellosa ?" 



Erase " fig. 8d," it having been replaced in the " Appendix, PI. A, fi£ 



PART II. 



Plate III. 

 For " Argiope decemcostata," read "Argiope Bronnii." 



PART III. 



Plate III. 

 For " Orbicula Townshendi, 0. Humphresiana," read " Discina Townshendi, D. Humphresiana." 



Plate XIII. 



For "T. Bentleyi (Morris), for the Cornbrash of Wollaston," read "from the Cornbrash of 

 Rushden." 



