368 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [May 19, 



great part of Belgium, no European country of equal area affords a 

 richer, perhaps no one so rich a field for the study of rocks newer 

 than the White Chalk with flints. I have stated in the present 

 memoir, that the older Pliocene or Crag strata of Suffolk are very 

 fully represented at Antwerp, and that in the Limburg the Upper 

 Eocene group is more completely developed than its equivalent in the 

 Isle of Wight. The Bolderberg affords an example of beds interme- 

 diate between the two groups last mentioned (probably of the Miocene 

 period), to which nothing similar in age has yet been found in England. 

 Again, the chalk of Maestricht or Ciply, long recognized as an upper 

 and peculiar member of the cretaceous system, is another rock of 

 which we have no example in Great Britain. Last, not least, there 

 have been discovered by M. Dumont and others, near Tournay and in 

 different parts of Hesbaye, strata occupying a position between the 

 Maestricht Chalk and the Lower London Tertiaries. These Lower 

 Landenian and Heersian groups of Dumont promise no scanty harvest 

 to the collectors of organic remains, and may, therefore, soon be made 

 to throw light on a period of the earth's history as yet more obscure 

 than any other of equally modern date. Judging from the character 

 of the numerous publications which have appeared in Belgium during 

 the last fifteen years, we may confidently affirm that the scientific 

 explorers of that country will continue to prove themselves worthy 

 of the grand field of investigation thus thrown open to them. 



