PLATE IV. 
Figs. 1 and 1 a. Crown and profile of No. 27,907, British Museum, a right lower 
last true molar, from the freshwater deposits at Clacton, Essex. (Half natural size.) 
Fig. 2. Crown of 22,017, British Museum, a right upper second true molar, from 
Grays Thurrock, Essex. (Natural size.) 
