Vol. 57.] PHYSICAL DEVELOPMENT OF GUADELOUPE. 519 



that the Elephas mentioned on p. 515 could have crossed from the 

 American continent, since when there has been no connection. 



(4) A. depression to 100 feet or more below the present height, 

 in mid-Tertiar}' days, and the accumnlation of the Upper Petit- 

 Bourg gravels and loams. 



(5) A subsequent elevation to an altitude of 150 feet above the 

 present, with the formation of short cafions along the coast. 



(6) Again submergence to a little more than the present level 

 with the growth of corals, as on the eastern coast. 



(7) These reefs have been raised to a height of 6 or 8 feet. 

 These latter oscillations of small amount maj' differ in the several 

 islands, owing to local variations. 



Hemarkable as is the recurrence of so many changes in level, 

 since the early Pliocene Period, yet the evidence is gathered from 

 phenomena which also extend to the Greater Antilles and the 

 American continent. 



