v1] MARSH AND AQUATIC ASSOCIATIONS 151 
TABLE I. CONSTITUENTS 
Aire Head Spring Smelt Hill Water Sink 
Grains per Millegrams! Grains per | Millegrams? 
gallon per litre gallon per litre 
SiO, 0°224 52 | 0-139 5:1 
SO; | 1-050 38°6 2°049 75°5 
HNO, 0-100 3°74 — — 
HNO, = — — — 
P.O Minute | Minute 
“5 traces — traces 
Cl 0-700 | 25°8 ! 0°700 25°8 
FeO; 0°030 11 0-009 3°3 
CaO 6°258 230°5 6°839 251°8 
MgO 0-403 148 0-841 | 31°0 
Na | 0-456 168 =| 0-456 16°8 
NH; 0°007 2°6 | 0-003 | 1-1 
Albuminoid | | 
NH; | 0-006 ey OO a 6-6 
| } } 
TABLE II. DissoLVED SALINE CONSTITUENTS 
| | 
Aire Head Spring | Smelt Hill Water Sink 
: | 
Grains per Millegrams?! | Grains per Millegrams? 
gallon per litre gallon per litre 
SiO, 0224 8:2 07139 
Ca (NO3)o 07130 ' 4°8 — 
CaCO; 9°77 36071 9°646 
CaSO, 1°785 65°6 37483 
MgCO; 0-843 ' 30°9 1°759 
NaCl 1155 42°5 1°155 
FeCO; 0:043 | 15°85 0:013 
13-958 513°9 167195 
Dissolved 
matter by 
evaporation 14:280 525°8 16°940 
1 15°43 grains=1 gram; 1:76 gallons=1 litre. 
