1921] DACHNOWSKI—PEAT DEPOSITS 87 
for several sciences, including archaeological research. In its 
relation to the practical worker in peat-land problems it is hoped 
this paper will suggest the influence which structural differences 
in peat deposits necessarily exert upon a true estimate of the value 
of peat deposits and upon the progress of peat-land utilization, 
especially upon the plans, methods, and equipment which must 
be adopted to convert suitable areas into productive sources of 
national wealth. 
Unitep STATES DEPARTMENT OF AGRICULTURE 
LITERATURE CITED 
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