Vol. 51.] PHYSICAL FEATURES AND GEOLOGY OF MAURITIUS. 471 



where is there any trace existing ? The Mascarene Islands con- 

 tained none, and when discovered were totally uninhabited except 

 by birds and tortoises. 



Plate XV. 



Sketch-map of the Island of Mauritius on the scale of ^^77-^7 = 8 miles to 

 the inch. 



Discussion. 



Prof. T. Rupert Jones spoke of the paper as having much value 

 in both its description of details and its treatment of subjects of 

 more general interest. 



Dr. J. "W. Gregory thought that the record of the schists in the 

 island was of considerable interest ; the Seychelles are known to 

 contain schists, but Mauritius is usually described as wholly volcanic. 

 He thought that better support for the view of a former land-area 

 could be obtained from the distribution of the Negrito than from 

 the nautical Malaysian race. 



