1917 
1916 
AMOUNT OF PHOSPHORIC ACID IN THE SEA-WATER. 
Nov. Deca warn 
Oct. 
Dec. Jan. 
Nov. 
nN ae) ~ 
> = —) —) > > = 
‘a4zI7T Aad *O°d fo swunabal/ ip 
In Water at Knap Buoy, Plymouth Sound. 
Phosphates 
253 
