SELF-SERVING IN RETAILING FOOD PRODUCTS. 
17 
or unless two persons at the existing exit are not able to take proper- 
care of the customers. It is very much to be desired that the exits 
be of such number and arrangement that the customer will not be 
required to wait for any appreciable period, and this usually can be 
accomplished. 
Figure 3 shows the simplest plan for an arrangement of the exits 
and cashier's desk in a one-exit store. This arrangement can be 
w 
A S H I E R 
[a] 
Cash 
Register 
Adding 
Machine 
kA/lA J MERCHANDISE DISPLAY 
Fig. 3. — One-way exit where only one employee is used. 
used with any number of cashiers or checkers by merely lengthening 
the counter sufficiently. But under the most efficient arrangement 
there should not be more than two employees for each exit. If there 
is only one employee, there should be a small cash register and 
adding machine, together with a scale, and equipment for wrapping 
the merchandise. An adding machine is not essential, but contributes 
materially to the speed and accuracy of the work. When two em- 
ployees are used at the exit the following alternative plan is efficient : 
78619°— 22 3 
