16 
GARDENING IN THE SOUTHWEST 
it is very stony, it must all be removed, and the correct mixture 
of sand, clay, humus and manure, so necessary to plant growth, 
be substituted. The amount of ingredients to be added varies with 
the texture of the subsoil, the desired tilth being comparable to 
the crumbly condition of a ball of earth, which if squeezed tightly 
while moist, will fall apart when released. 
When the subsoil has been thoroughly prepared, the next step' 
is carefully to pulverize the topsoil and enrich it by the addition 
of sufficient manure, sand, clay and humus to bring it to the stand- 
r 7p1oTt of arc j 0 £ good garden loam. As with the subsoil, this varies according 
to its general character and when correct will meet the require¬ 
ments for an ideal* soil. 
From Information Contributed by 
Beulah Hughes 
and 
Government and State Bidletins 
and Other Publications 
* See opening paragraph. 
