-— 
57 
in different specimens, but is uniform throughout in the 
case of each individual specimen. Mr. W. T. Chapman kindly 
eae ag to make an analysis of one of these, with the 
ollowing results : — 
Per cent. 
Sulphur tri-oxid i. id t DU aoe 
Barium oxide ... us e Pd 2s. OTa 
Caleium oxide M aad ila d. uc WM) 
Strontium oxide Rn d. T 0 ODO 
i d xd Ad E. ALIM 
Ferric oxide  ... at da eo Iu ae 
Magnesia iue sel n EG dic UM 
Water c. et uu Gs y wt OT 
100:40 
ground ng eriod of drought it is not unusual to find 
at a considerable depth earthworms coiled up within a little 
chambe e This chamber corresponds to the 
Ty have formed in cavities formerly occupied by annelids, 
the difference being that in some cases the cavity has preserved 
the true outline of the former occupant, while in others it 
as not. 
"annot at present be definitely determined. Barium salts 
not infreque | 
barium and lime are often found in association, as occurs In 
, the would probably form, in 
‘st instance, a soluble bicarbonate, and then by ac “re 
. Taction with some soluble sulphate be converted into barium 
