The Post Office has been Uncle Sam’s peculiar interest ever since
the Federal Government was founded; and he pushes that business ever
farther and farther. The letter, the newspaper, the book and the
package, are sent flying from one of the long arms of Uncle Sam to
another, till the business has come to total over three hundred million
dollars a year. The registry service, special delivery system, and
especially the parcel post, bring new conveniences, and new proofs of
our Uncle’s desire to be useful. In the course of the war the whole
system of telegraphs also was taken over. Many lines of business,
especially the newspaper and periodical publishers, the mail-order
houses, and the advertisers are dependent upon this field of Government
operation.
[Illustration: INFANT MORTALITY RATES (PER 1000) ACCORDING TO FATHER’S
EARNINGS