222 
that in clay water had wetted somewhat under sixteen square feet as 
against about thirty square feet in the case of the lighter, more 
porous soil. It is contended that a still deeper and narrower water 
channel in the ease of the clay soil would have carried the water 
deeper, and would have resulted in economy in the use of water, a 
smaller flow producing as large an area of saturation with less sur- 
face. 
Clay Loars Sandy Sol 
2he We 0 We SS 256 Ah 0 Mie 2b 
i i Hepat tit tke 
i orig tenpae pees pec! 
Siesse ao at tht. 
133 0 Sbes Orans tbe 
‘a : 
: ce 2st 
ath 
=A 
FE] 3j¢ 
: aa 35 
: ' He 
stidd Sonat pire 
reeereer (224 7a SURFACE 
att ae ag 
* be 4 Jt 
2 eee 
are staeset ate eines HEY sp 
= I} pesadtes cee c aa gS na 
HEE | eraerpranatpabessis estat 
ebechstal pycasiss ! : : 
H ea lel HE # oe 
thy tt +] 
sailit ft i 
a = t:| 
i 
SURPAC! 
: 6 
= 3 
Bad 
f. 
+ 2th 
tea = 
Reps So Ame 
eFiseebes owes 
z Fase 
eresecaaes 
Bubsaas et tees 
zp Gr 
Hiern 
72 HOURS AFTER IRRIGATION 
Percolation expermments, showing spread of water from deep furrows 
in clay and suudy soils. 
Cost.-Tt is reckoned that with one horse and plough one man 
can prepare ten acres for irrigation in a day at a cost of 12s. 6d., 
or ls. 3d. per acre. With a scarifier six feet wide and a pair of 
horses, one’man can cultivate the same area of ground after each 
watering at a cost of 15s., or 1s. 6d. per acre. 
