toward the north. To correct this, certain parallels north and
south of the base line were chosen as CORRECTION LINES, from which
the survey began again as from the original base line.

Each township is divided into SECTIONS one mile square, and
therefore containing 640 acres each. These sections are numbered
in each township from 1 to 36 as indicated in diagram III. Each
section is further subdivided into halves and quarters, which are
designated as in diagram IV.

This government survey has been made only in the "public lands"
(see below, p. 197). It is still being carried on by the General
Land Office of the Department of the Interior. In 1917 more than
10,000,000 acres, or nearly 16,000 square miles, were surveyed. In
that year there still remained unsurveyed more than 900,000 square
miles of public land, 590,000 of which were in Alaska and 320,000
in the United States proper. In the original thirteen states along
the Atlantic seaboard a similar survey has been made, but either
by private enterprise or under the authority of the state or
county governments. Massachusetts has recently spent a large sum
of money in a new survey of the state for the purpose of verifying
and correcting doubtful boundaries.

Has your father a deed to the land you live on? If so, ask him to
show it to you and explain it. How is the land described?

At the first convenient time, make a visit to the office of the
recorder of deeds in your county, and ask to have some of the
records shown and explained to you, preferably the record of the
property you occupy. Where is the office of the recorder? (A visit