224 



Prof. J. W. Judd. 



[Nov. 19, 



Sample 7. Depth, 40 ft. 



Dark coloured sand. Consists of 81*94 per cent, sand, and 18*06 

 per cent. mud. 



Sand. — Composed of very different sized particles; the coarser 

 being nearly always well-rounded pebbles of colourless quartz, with 

 some jasper. A large proportion of the finer sand-grains in this 

 sample are also well rounded. 



Mud. — Of usual character. 



Sample 8. Depth, 48 ft. 



Lighter coloured sand. Consists of 87*23 per cent, sand, and 12*77 

 per cent. mud. 



Sand. — Varies greatly in coarseness,- many of the smaller grains 

 being well rounded. The rounded grains are almost all colourless 

 quartz (granitic), but smoky quartz, rose-quartz, citrine, and jasper, 

 are not rare. The finer sand consists of the usual minerals. 



Mud. — Usual characters. 



Sample 9. Depth, 55 ft. 



Dark coloured mud. Consists of 0*25 per cent, sand, and 99*75 

 per cent. clay. 



Sand. — Fine grained, and composed in great part of calcareous 

 concretions of the muddy particles. Most of the other grains are 

 angular, and consist of the usual minerals- well-rounded quartz 

 grains are very rare in this sample. 



Mud. — Consisting of coarser particles than usual, is seen to be made 

 up of quartz, felspar, hornblende, and mica fragments, and kaolin 

 particles are rare. 



Sample 10. Depth, 60 ft. 



Dark coloured sand, clay, or mud. Consists of 12*60 per cent, 

 sand, and 87*40 per cent. mud. 



Sand. — Mostly well-rounded grains of quartz, with hornblende and 

 calcareous concretions by no means rare. Grains of black carbonised 

 vegetable matter. 



Mud. — Contains much organic matter and some kaolin particles, 

 with the same mineral fragments as in the last sample. 



Sample 11. Depth, 66 ft. 



Dark coloured very sandy clay. Consists of 62*07 per cent, sand, 

 and 37*93 per cent. mud. 



Sand. — Mostly fine grained, and the particles generally angular. A 

 few well-rounded quartz-particles ; plagioclase and orthoclase felspar, 

 hornblende, &c, also occur. Several angular and subangular frag- 



