FOSSIL STAR- FISHES AND SEA-URCHINS, 157 



The rambler can hardly go into the wrong quarry- 

 in the Upper Chalk for Ananchytes, Micraster, Gale- 

 rites, etc. They are especially numerous in the large 

 Chalk-pits which nearly surround the city of Norwich. 

 The white-surfaced Chalk-flints, which lie in heaps in 

 the quarries ready for breaking up into road metal, 

 should be carefully examined — if possible one by one. 

 I have found many " fairy-loaves " and their kind 

 half-imbedded in these hard flints, plainly showing 

 that the latter must have been soft when the fossils 

 were thus buried. In the Chalk-pits about Guildford 

 may be collected Holaster plmms, Micraster cor- 

 brevisy M. testiidinarmm, etc. Cidarids are abundant 

 in the Chalk at Gravesend and Dorking. The com- 

 monest of these in this formation is Cidaris clavigera. 

 Another common fossil of this kind is Cyphosoma 

 corollare, abundant at Brighton, Gravesend, and 

 Woolwich. Cardiaster (allied to Holaster) is found at 

 Maidstone. Many of these Chalk-pits are in lonely 

 localities — ^just the very places a man would select 

 for quiet walks, or for attractive scenery ; and 

 indeed, the tourist finds that the fossiliferous rocks 

 usually crop out where Nature is apparelled in her 

 most attractive garb. 



