76 FUNAFUTI ATOLL. 



particle, which is considerably heavier than that in the preceding 

 specimen, but has not been sufficient to till up the intersticial 

 spaces. 



Coral-Hock. A portion of coral-rock obtained from the breccia 

 about a mile south of Luamanif at about the high tide level. 

 The structure of the coral has been much impaired. This is due 

 to subsequent alteration, which has consolidated the mass leaving 

 only a few small pores. 



Hygroscopic moisture... ... ... 0-27 



CaC0 3 97-69 



MgC0 3 1-69 



P 3 fi trace 



99-65 



Soil from Taro Plantation. The plantation lies in the centre 

 of the main islet of Funafuti, and the soil has been formed from 

 beach sand, enriched with decayed vegetable matter. The various 

 components of the sand are distinctly seen, some of the tests of 

 the smaller Foraminifera being still but slightly damaged. 



An analysis of an air-dried sample gave the following results : 



Hygroscopic moisture... ... ... 1*81 



CaO 47-23 



MgO 1-07 



K 3 -05 



Na 3 O -44 



Fe 2 3 -28 



P 2 O 6 6-00 



S0 8 -44 



01 -02 



C0 2 33-65 



Organic matter ... ... ... 8'97 



Residue (insol. HOI.) -04 



100-00 



The large percentage of phosphoric acid would seem to shew 

 that a considerable quantity of animal matter, either in the shape 

 of bones or excrement has been added to this soil as a manure, 

 Mr. Hedley, however, failed to observe that any other means of 

 enriching it was employed beside the addition of green leaves and 

 decayed vegetable matter. 



