146 TERTIARY ROCKS OF AUSTRALASIA, 



Sistorical Classification of 



Forest-bed Group 



Chillesford Beds 



Norwich Crag 



Bed Crag 



White Crag 



Mull and Antrim Leaf-beds ? 



Hempstead Beds 



Bembridge Beds 



Osborne or St. Helen's Beds . . . 



Upper Headon Beds 



Middle Lower ditto 



Upper Bagghot Sands 



Barton Beds 



Bracklesham or Middle Bagshot 

 Lower Bagshot 



Part of Lower Bagshot 



London Clay 



Oldhaven Beds 



Woolwich and Reading Beds . . 

 Thanet Sands 



Forbes, 

 1856, 



Jukes, 

 1862. 



