60 BULLETIN 677, U. S.. DEPARTMENT OF AGRICULTURE. 
The soils of this group were not arranged, however, with respect 
to their utilization for truck-crop production, since that is a matter 
which is of secondary importance in their case. The arrangement 
is made on the basis of the percentage of their areas given to general 
farm crops. The Portsmouth sandy loam takes second rank, not so 
much because of its texture as because of its low-lying topographic 
position. It is so situated as to be permanently moist and this gives 
rise to its use for the growing of hay and corn to a degree exceeding 
what might be expected from its sandy texture. 
Without reference to the absolute figures, it should be noted that 
each type in this group supports a higher percentage of general farm 
crops than of truck crops. 
The single type in the fine sandy loam group is hardly sufficient to 
form a basis for any decided conclusions beyond the fact that it falls 
between the extremes set by the sandy soils on the one hand and the 
more loamy soils on the other. 
No very definite conclusions with respect to the crop occupation of 
the subordinate soils should be drawn from the figures given. It 
is evident, however, that the Collington sand is found to be too 
porous and droughty for any large amount of farm occupation. The 
use of the Collington loam and sandy loam and the Elkton loam 
for the growing of general farm crops and potatoes is in accord with 
the general conditions observed over considerable areas of these types 
included in the reconnoissance work in southern New Jersey. 
It is apparent from these tables that soils may be classed according 
to their textural peculiarities in rather close accord with the fact of 
crop occupation within an area of well developed and specialized 
farming such as that of southern New Jersey. 
The table shows that the balance between general farming ‘and 
truck-crop production within these four areas is a graduated matter 
of soil-texture control. The truck crops dominate the sandy soils, 
and the general farm crops dominate the loamy soils. There is 
a fairly definite graduation in the crop occupation of the types 
from the sandy soils, through the coarser sandy loams and the 
heavier sandy loams, to the loams at the other end of the scale. The 
consonance between texture and crop uses is too close through the 
entire set of dominant soils to be considered as any mere matter of 
accidental coincidence. Moreover, the four areas are too widely 
separated geographically to permit one to attribute this consonance 
to the possible influence of prejudice in soil selection for crop grow- 
ing as might be the case in a single community more or less wedded 
to a traditional system of agriculture. 
The practical application of the soil-survey classification of soils 
to the needs of progressive agriculture with respect to the selection 

