128 BULLETIN 414, U. S. DEPARTMENT OF AGRICULTURE. 
wooden quarters probably would be avoided, at least for temporary 
camps, on account of the scarcity of wood. 
(d) The relative permanence of the camp on one site. A camp 
which reasonably may be expected to remain in one place for four or 
five years or longer may be treated as a permanent establishment 
and a type of construction may and should be adopted which, for 
more temporary quarters, would be too wasteful. Obviously, tents 
are suitable only for what are termed " flying camps" and would be 
out of place in a permanent camp. 
(e) As between the various types suitable to the purposes of a 
temporary camp, the choice of a particular type will be affected by 
a consideration of the frequency of the moves, the probable dis- 
tances between successive camp sites, and the character of the roads 
over which it will be necessary to move the camp equipment. When 
moves are to be frequent, distances great, and roads bad, the lightness 
of tent equipment might be expected to outweigh many other con- 
siderations. Under more favorable road conditions considerations 
of economy might recommend the use of cars or cages, though the 
use of such equipment is to be avoided whenever possible on account 
of the extremely unpleasant associations attending their use. Finally, 
for camps of a somewhat less mobile character well-designed portable 
houses of metal or wood will serve admirably. 
(/) Lastly, an important consideration is the character of the 
inmates to be housed, with respect to their relative trustworthiness, 
race, crimes, and sentences, it being obvious that a more secure type 
of building is necessary for the confinement of the desperate and 
unreconciled than for tl honor" men and ''trusties." * 
After the most convenient type of building has been selected in 
view of the foregoing considerations, attention should be given to 
see that the structures selected or designed embody certain essential 
properties which should be common to buildings of all types. 
First of these is economy. But giving this property the first con- 
sideration does not mean that it should be achieved at the expense 
of all the other properties essential to a good structure, but, rather, 
that it should be considered in providing for the other properties, all 
of which may be attained in either an extravagant or an economical 
manner. In general, it may be stated that the interests of true 
economy are best served by those forms of structures which embody 
all the properties essential to their purpose, including longest service 
for least cost, which is obviously not equivalent to mere cheapness 
of first cost. For example, a well-designed portable building would 
undoubtedly be found more economical for a temporary camp than 
many of the cheap shacks which are used for that purpose, for, though 
the latter are less expensive at first, their frequent tearing down and 
rebuilding, accompanied by a necessary loss of material, make them 
