@ 
Je K. TAYLOR, 
_ The three analyses of the suriace soil are presented in 
in Table I. 
Table 1.—Mechanical Analysis of Soils used in Experiment. 

Size of Experiment 







Fraction. paciore Picts. Lucerne. Grass. 
mm. of oF % 
Coarse gravel OG) tring 3) 42 : 
Fine gravel ...| 2 — °5 10°5 25:5 74 
Coarse sand...| -5 — °1 9-5 11:3 Oto) 
Himersamdie ee ll = O04 26:0 30:43 
Silt. pos Ot 19:5 15:5 Bb 
Clay, ete. .| below -O1 52°5 eS } 

The 
soil would be described as a sandy loam with a 
This table confirms the results of field observations. 
““lucerne”’ 
rather porous subsoil, while the grass land and experiment 
plot soils are heavy red clay loams with a retentive clayey 
subsoil. All are derived from granite, but the “‘lucerne’”’ 
soil is near the top of a rather steep slope, whilst all the 
others are on gently sloping land further down. It is 
evident that a considerable amount of the clay has been 
washed out of the “‘lucerne”’ soil leaving a relatively high 
proportion of gravel and coarse sand. 
Chemical Examination of Soils. 
From a chemical point of view the soils are not very rich 
in plant-food-material, but are known to be sufficiently 
well supplied with everything except phosphoric acid for 
the successful growth of wheat under the climatic con- 
ditions of the wheat-belt. 
Some chemical estimations by the usual analytical 
methods yielded the following results:— 
i Lucerne” Soil. 
Hygroscopic moisture 
Loss on ignition 
Per cent. 
“91 
2°92 
Experiment Plot Soil. Per cent. 
Hygroscopic moisture 1°96 
Loss on ignition 4°38 
Insoluble matter (Conc. 
HCL) 93°35 
Lime—CaO ... “11 
A ae Acid 12 
Humus.. "93 

Insoluble matter (Conc. 
HOL) 88°57 
Lime — CaO 5) 15) 
Phosphoric acid °08 
Humus We We 9 
