226 



Prof. J. W. Judd. 



[Nov. 19, 



Sample 4. Depth, 22 ft. 6 in. 



Dark coloured loam. Consists of 31*56 per cent, sand, and 68 44 

 per cent. mud. 



Sand. — Consists of an admixture of rounded subangular and 

 angular grains of the usual minerals. A smaller admixture of cal- 

 careous particles of both types. 



Mud. — Consists largely of fine fragments of the usual minerals. 



Sample 5. Depth, 31 ft. 



Dark coloured sandy loam. Consists of 39*43 per cent, sand, and 

 60 '57 per cent. mud. 



Sand. — Made up of fine-grained materials, in which subangular 

 fragments predominate ; they consist of the usual minerals, with a 

 few light coloured calcareous concretions. 



Mud. — Consists of coarse particles of the usual minerals. 



Sample 6. Depth, 40 ft. 



Dark coloured sand. Consists of 80*70 per cent, sand, and 19*30 

 per cent. mud. 



Sand. — Much coarser than usual, the particles mostly well rounded ; 

 they may be called, indeed, quartz pebbles. The usual minerals are 

 represented, with the addition of zircon and enstatite (?). Calcareous 

 concretions and a derived fossil (obscure). 



Mud. — Very fine grained. 



Sample 7. Depth, 46 ft. 



Lighter coloured very coarse sand. Consists of 95*90 per cent, 

 sand, 4*10 per cent. mud. 



Sand. — Made up of coarse grains, all well rounded and polished. 

 Milky quartz and amethyst recognised. Only a small quantity of 

 angular and. subangulur fragments. Calcareous concretions present. 



Mud. — Very fine grained. 



Sample 8. Depth, 55 ft. 



Very coarse sand. Consists of 97*71 per cent, sand, and 2*29 per 

 cent. mud. 



Sand. — Made up of coarse particles of different minerals, all well 

 rounded ; some angular fragments of limestone. Among the rounded 

 particles the following minerals were detected : colourless (granitic) 

 quartz, citrine, jasper, milky and rose quartz, iolite (cordierite), 

 tourmaline, nephrite (?). 



Mud. — Small in quantity, and very fine grained. 



