18 BULLETIN 849, U. S. DEPARTMENT OF AGRICULTURE. - 
a platform or from chutes which are placed so high that they come 
even with the floor of the delivery wagon, very little lifting is re- 
quired. 
The figures in Table 3 also indicate that if a platform is used the 
system of trucking the milk from the storage room is much less eco- 
nomical as to time and labor than sending the milk out on con- 
veyers. Ata small plant loading only a few wagons the use of con- 
veyers may not be practicable. One or two men besides the driver 
can handle the work, while in using a conveyer system more men may 
be necessary, although the time consumed would be less. 
Fic. 6.—Loading delivery wagons at plant using system H. (The second chute was not 
in use at the time the photograph was taken.) An average of 34.3 wagons per hour 
were loaded at the three plants using this system. The average time required to load 
one wagon yaried from 1.5 to 2.3 minutes. 
The table also indicates that considerable time may be saved by 
using a conveyer rather than by loading the wagons direct from the 
storage room through one door or chute; though this means but little 
if only a few wagons are to be loaded. The hours of labor per wagon 
were not very different with the two systems, while the time per 
wagon was nearly three times as great with system D as with the 
platform-and-conveyer system. 
At plants where two or more chutes from the refrigerator room 
are used, roller conveyers generally carry the milk from the rear of 
the room to the door, and usually one class of goods is put out at each 
door. For example, quarts of milk will be put out at door No. 1, 
pints at No. 2, and cream, etc., at door No. 3. As many wagons can 
