A VISIT TO THE CHANNEL TUNNEL. 63 



a few hours' duration, I have collected the following : 

 Ammonites margaritatus, A. tuberculatus, A. inter- 

 ruptus, several other species of Ammonites, Belem- 

 nites minimus and others, Hamites rotundus, 

 Inoceramus sulcatus, I. concentricus, Rostellaria 

 carinata, Solarium, Nucula ovata, N. pectinata, 

 Natica Gaultina, Pleurotomaria Gibsii, Turrilites 

 elegans, Ostrea carinata, Pentacrinus Fittoni, Spine 

 of Echinus, Teredo, Carapace of Crab, Lobster, and 

 Saurian vertebrae. As there are some 250 species 

 at least recorded for the Gault it would be easy to 

 add to this list by remaining at Folkestone long 

 enough to take advantage of the most favourable 

 tides. 



The hammer and chisel are of little use for the 

 Gault. Its fossil contents must be carefully cut out 

 with a knife, and even the most delicate handling 

 will not always secure them unbroken. Let the 

 amateur take up a ball of the plastic clay and 

 mould it with his hands into an apple-dumpling 

 shape, sticking upon it with as much artistic taste 

 as he possesses the various specimens picked up, 

 and this, when hardened by keeping, will make a 

 capital paper-weight for the study table, and will 

 serve as a miniature representation of the Gault. 



But we must leave this fruitful necropolis of 

 ancient cretaceous beings, so fascinating to the 

 geologist, but a terror to the Channel Tunnel 

 engineers, and round the point which terminates 

 the Warren. 



Now the chalk proper may be witnessed in all its 

 glory. From this spot to Lydden Spout the cliffs 



