I 



'"Ik 



•»t) 



'J 



1 





h 



J 





* 



one 



) 



^c 



'nuni 



rl^i 



■«i into tie 



-»i 



are per. 

 » number of 



^ • 



vaiiig s 

 f 



-'• 



birds, 



are 



peii La of tie 

 rth. 



•♦' -miis'arp- 

 . . ;. ,1 br::;ia 



.Tating 



lime' 



rr 



.freamlet, to 

 gbuiitlii^' 



; thus fcTUl^^ 



1 i.; 21^' 



If^ 





st 



C 





» * 



Cttl* 



]83C. 



Ch. XLV.l 



AL 



523 



careous deposit of a brick-red colour. In this red deposit 

 are shells^ or often tlie hollow casts of shells^ chiefly referable 

 to eight or nine species of land snails^ a few scattered bones 

 of quadrupeds^ and^ what is still more singular, marine uni- 

 valve shells^ often at the height of many hundred^ or even 

 one thousand feet above the sea. The following explanation 

 is given of the gradual increase of this deposit. Land snails 

 of the genera Helix^ Cyclostoma^ Pupa^ and Clausilia^ retire 

 into the caves, the floors of which are strewed with myriads 

 of their dead and unoccupied shells, at the same time that 



t) 



mountain 



frap'ments 



white limestone which occasionally falls from the roof. 

 Multitudes of bats resort to the caves ; and their duno-, 

 which is of a bright red colour 



V 



om 



imparts its red hue to the mass 



Hutia 



dies and leaves its bones in the caves. ^ At certain seasons 

 the soldier-crabs resort to the sea-shore, and then return 



them 



rather 



draorg^ing. 



the shell of 



marine 



univalve for many 



mile 



may 



traced even at the distance of 



miles from the shore, on the summit 



times 



tains 1,200 feet high, like the pilgrims of the olden 

 each bearing his shell to denote the character and extent of 



By this means several species of marine 

 testacea of the genera Trochus, Turbo, Littorina, and Mono- 

 donta, are conveyed into inland caverns, and enter into the 



composition of the newlv formed rock. 



his wanderings.' 



^ 



