172 LITERATURE. 



29. " On some New Pycnoclonts." Sir Philip Egerton. ' Geol. Mag.,' 



Dec. 2, vol. iv. 1877. 



30. " Palichthyologic Notes." Sir Philip Egerton. ' Quart. Journ. 



Geol. Soc' 1848-60. 



31. "The Affinities of Platysomus and Allied Genera." Young. 



' Quart. Journ. Geol. Soc.,' vol. xxii. 1866. 



32. " Crustaces divers et Poissons des Depots Sduriens de la Boheme." 



Barrande. 1872. 



33. " British Palaeozoic Fossils." M'Coy. 1852 and 1855. 



34. " Ueber die Palaeozoischen Gebilde Podoliens und deren Versteiner- 



ungen." Alois von Alth. 'Abhandl. d. K. K. Geol. Reich- 

 sanstalt.' 1874. 



35. " On the Ludlow Bone-bed and its Crustacean Remains." Harley. 



'Quart. .Journ. Geol. Soc.,' vol. xvii. 1861. (Conodonts.) 



36. " The Vertebrata of the Cretaceous Formations of the West." Cope. 



' Rep. U.S. Geol. Survey of the Territories,' vol. ii. 1875. 



