...32-33. Section 4 contained not only the basic rule above described but also the following proviso : Upon application to the Commission appointed under the provisions of this Act, such common carriers may, in special cases, after investigation by the Commission, be authorized to charge less...

...charge and receive as great compensation for a bhorter as for a longer distance: Provided, hiyimer, That upon application to the Commission appointed...may from time to time prescribe the extent to which siit-h designated common carrier may be relieved from the operation of this section of this act." At...

...of such a situation by an application to the Commission. The language of the proviso is as follows: That upon application to the Commission appointed under the provisions of this act, such common earner may, in special cases, after investigation by the Commission, be authorized to charge less for...