587 



10 



(1 °/„), angular, mean dia- 

 meter 0"6 mm., felspar and 

 magnetite ; no manganese 

 or sulphide of iron ob- 

 served. 



(1 %), angular, juean dia- 

 meter 6 mm., felspar and 

 magnetite; no manganese 

 grains observed. 



(3 °/^), angular, mean dia- 

 meter 0'3 ram., volcanic 

 glass and felspar, one par- 

 ticle of felspar observed 

 measiu-ed 055 mm. in dia- 

 meter, and a fragment of 

 volcanic glass measured 

 2 mm. in length. A small 

 but perfect crystal, clear 

 yellow in colour, and of a 

 wedge shape, probably 

 sphene (?), was also ob- 

 served. 



(1 %), angular, mean dia- 

 meter 0'18mm., particles 

 of felspar only observed. 



(2°/„), angular, mean dia- 

 meter 0'2 mm., felspar, 

 hornblende and volcanic 

 glass. 



(1 °/„), one or two particles 

 of felspar and glass. 



), angular, mean dia- 

 er O'lSmm., particles 

 ;lspar observed only. 



None. 



None. 



Siliceous Organisms 



(3 °/„), sponge spicules, a 

 few green clayey casts of 

 Foramiuifera ; Coprolites ; 

 Diatom.s. 



(5 °/„), green clayey casts of 

 Foramiuifera, etc. ; grey 

 and black clayey Copro- 

 lites ; no manganese grains 

 or sulphide of iron. 



(2 %), fragments of Radio- 

 laria ; Diatoms. 



(1 %), sponge spicules 



(1 7o); sponge spicules. 



(2 °IJ, sponge spicules, Ea- 

 diolaria, Diatoms {Siiri- 

 rella, etc.). 



(1 7j)i sponge spicules, 



(1 °/„), sponge spicules. 



(1 7„), one or two sponge 

 spicules. 



Fine Washings 



(6 %), amorphous clayey 

 matter with minute frag- 

 ments of siliceous organ- 

 isms, casts and mineral 

 particles lessthanO-05 mm. 

 in diameter. 



(4 %), amorjihous clayey 

 matter, with minute mine- 

 ral particles less than 

 0"05 mm. in diameter. 



(5 "/„), amorphous clayey 

 matter with fragments of 

 minerals and small Dia- 

 toms. 



Practically none. 



None. 



None. 



°/J, made up principally Minikoi. Soil of 

 of vegetable fibre and a lowplantingground, 



Suvadiva, W. i 



mile W. b. S. of Ve- 

 lana I. 



Suvadiva, W. 3 



miles W. of Havaru 

 Tinadu. 



Felidu, middle of 

 atoll. 



North Mahlos, 



middle east side. 



North Mahlos, 



S.W. Close off Fus- 

 mundu. 



North Mahlos, 



W. Within lagoon 

 of Bodu Furo. 



great many small brown 

 cocoons of larvae (insect ?). 



(2 %), vegetable fibre. 



(I °/„), a few fragments of 

 vegetable matter. 



middle of island. 



Minikoi. Soilfrom 

 3 — 4 feet deep near 

 Lighthouse. 



Minikoi. Centre 

 of lagoon. 



