274 
Drainage of Land. 
siliceous character where it comes immediately in contact with 
the greensand. It has also imbibed a calcareous quality by an 
infiltration of the chalk through the greensand into its bed ; for 
a wide breadth, however, the gault is denuded, and there, although 
the greensand is absent, a very considerable infiltration of lime 
has taken place, which, I presume, may be accounted for by the 
fact, that the chalk escarpment rises in almost cliff-like shape 
immediately at the margin of the gault, and any submersion of 
the gault has necessarily imparted to it the character of its more 
prominent and overwhelming neighbour. 
Analyses of the Soil. — The following are by Professor Way : — 
Of the Lower Chalk and Mixed Drift. 
Moisture and organic matter 3"27 
Sands and clays 24-37 
Silica soluble in acids 1'23 
Oxide of iron I'li 
Phosphate of lime 0-92 
Sulphate of lime 0'76 
Carbonate of lime G8"31 
100-0 
Of the Gault (at 24 inches deep). 
Jloistui-e and organic matter- 5-01 
Sands O'GG 
Clay 63-26 
Carbonate of lime 31'07 
100-0 
Of the Gault (at 42 indies deep). 
Moisture and organic matter 4-2S 
Sands 0-34 
Clay 02-97 
Carbonate of lime 32-41 
100-0 
Mode of Draining . — The lands of mixed open character, no 
less than those of the gault c;lay, had suffered previously from 
excessive wetness, although they had been drained from time to 
time with bushes laid, without distinction of soil, at close in- 
tervals, and from 15 to 18 inches deep. Under my directions a 
connected system of works was adopted to secure an effective 
discharge of the water drained from the higher through the lower 
