1885.] Report on the Deposits of the Nile Delta. 227 



Sample 9. Depth, 56 ft. 



Excessively coarse-grained sand. Consists of 99 53 per cent, sand, 

 and 0*47 per cent. mud. 



Sand. — Made up of large well-rounded grains of quartz of all 

 colours, with jasper, &c. Angular fragments of limestone of a 

 tufaceous character of considerable size. Fluorspar. One piece of 

 jade which did not show signs of being worked. 



Mud. — Very fine grained. 



Sample 10. Depth, 58 ft. 



Reddish-brown sandy loam. Consists of 59*09 per cent, sand, and 

 40*91 per cent. mud. 



Sand. — Coarse well-rounded particles, with an admixture of angular 

 ones. Among rounded particles, several of jade. Other minerals as 

 usual, with black jasper or Lydian stone, tourmaline, fluorspar. 

 Angular fragments of tufaceous limestone, containing sand grains. 



Mud. — Very fine grained, with some organic matter. 



Sample 11. Depth, 68 ft. 



Hard reddish-brown clay, with some calcareo-argillaceous con- 

 cretions. Consists of 7*76 per cent. san|l, and 92*24 per cent. mud. 



Sand. — Admixture of large well-rounded particles of quartz and 

 smaller subangular ones of different minerals, with irregular calcareo- 

 argillaceous grains. 



Mud. — Made up of coarse particles of different minerals. 



Sample 12. Depth, 73 ft. 



Ash-grey sandy loam. Consists of 59*95 per cent, sand, and 40*05 

 per cent. clay. 



Sand. — Rather fine, and mostly subangular or angular, with some 

 large and well-rounded grains. The usual minerals are present, 

 including amethyst and milky quartz. 



Mud. — Rather coarse grained, and consisting of recognisable 

 mineral particles. 



The samples, with the preparations made from them, have, by the 

 desire of the Delta Committee of the Royal Society, been deposited 

 in the British Museum, Natural History, Cromwell Road, South 

 Kensington. 



