Arizona..

Feb. 14, 1912

$216, 639

1,772, 482

2, 153, 000 | 113, 909 | Formed from territory ceded to the United States by Mexico, part by the Treaty of Guadalupe Hidalgo of Feb. 2, 1848, and part by what is known as the "Gadsden Purchase," Dec. 30, 1853.

Formed from territory ceded to the United States by
Russia by treaty of Mar. 30, 1867.

Formed from the territory of the Republic of Hawaii,
annexed to the United States by act of Congress of
July 7, 1898.

337,000
847,000

District of Columbia..

756, 510

723,000

69

Formation

Established under Art. I, sec. 8, clause 17 of Constitution. Ter-
ritory originally ceded by Maryland (legislative act of Dec. 23,
1788) and Virginia (legislative act of Dec. 3, 1789). Cessions
accepted by Congress by act of July 16, 1790; lines and bounds
established by proclamation of President Washington, Mar. 30,
1791. Virginia's cession retroceded by act of Congress July 9,
1846. The government of the District is administered by a
Mayor and a 13-member Council, all of whom are elected by the
citizens of the District of Columbia. All acts of the council are
reviewable by Congress. (Dec. 24, 1973, Pub. L. 93-198.) Pur-
suant to the District of Columbia Delegate Act the District of
Columbia now has a non-voting Delegate to the House of
Representatives. (Sept. 22, 1970, Pub. L. 91-405, §§ 201-206, 84
Stat. 848.)

[973]

COMMONWEALTH OF PUERTO RICO, THE INSULAR POSSESSIONS, AND TRUST TERRITORY OF THE PACIFIC ISLANDS

Commonwealth of Puerto July 25, 1952

2,712, 033

2,951,000

3, 421

44, 198

41,000

362

209

Acquisition

Ceded to United States by Spain by Treaty of Paris, Dec. 10,
1898. The constitution of the Commonwealth was approved
July 3, 1952.

Under the terms of the Isthmian Canal Convention of Nov.
18, 1903, the United States acquired from the Republic of
Panama a perpetual right of occupation, use, and control of
and over a zone of land 10 miles in width. For the privilege
the United States paid the Republic of Panama $10,000,000.
The United States also pays Panama $250,000 annually, dating
from Feb. 26, 1913.

Ceded to the United States by Spain by Treaty of Paris, Dec. 10,
1898.
76 Acquired by the United States Feb. 16, 1900, under terms of
tripartite treaty Dec. 2, 1899. Full sovereignty accepted from
native chiefs by United States Feb. 20, 1929.

132

1 Administered under jurisdiction of the Department of the Interior.

By purchase from Denmark, Mar. 3, 1917, for $25,000,000. The
Revised Organic Act of 1954 is the basis for the present territorial
government.

Occupied during World War II. Placed under the United
Nations Trusteeship system in 1947 by agreement with the
Security Council of the United Nations.

Administered under jurisdiction of the Department of the Interior except for the Saipan District, which is under Navy.

Total. 65 106 142 186 213 242 232 237 243 293 332 357 391 435 435 435 437 435 435

Indicates representation of new States admitted after the respective decennial census appor tionments.

NOTE: The original apportionment of Representatives was established in 1787 by the Constitution. Subsequent apportionments based on the 1st Census through the 6th Census were as follows (number of census, date of act, and ratio of persons per Representative): 1st, Apr. 14, 1792, 33,000; 2d, Jan. 14, 1802, 33,000: 3d, Dec. 21, 1811, 35,000; 4th, Mar. 7, 1822, 40,000; 5th, May 22, 1832, 47,700. 6th, June 25, 1842, 70,680. Apportionment based on the 7th Census (1850) through the 12th Census (1900) was determined by the Vinton method, and for the 13th Census (1910) and 15th Census (1930) the method of major fractions was employed, there being no reapportionment in 1920. Apportionment based on the 16th Census (1940), the 17th Census (1950), and the 18th Census (1960), was determined by the method of equal proportions, a description of which may be found in S. Doc. 304, 76th Cong., 3d sess.

GENERAL INDEX

NOTE-For detailed items not found in this general index

see the following special indexes:

Standing Rules of the Senate_

Legislative Reorganization Acts of 1946 and
1970 (cross-reference tables) - - - .

Congressional Budget and Impoundment Con-
trol Act of 1974 (cross-reference table) - - - -
Cleaves' Manual (conferences) -

Jefferson's Manual_

Constitution of the United States.

Senators of the United States..

Senate

Manual

Section

50

55

55.3

188

754

797.5

900

Academies, service, Boards of Visitors to. See Boards of
Visitors.

Actions brought against officers of the Senate..

Acts, printing of__

301

622

Aeronautical and Space Sciences, Committee on. See Com-

mittees, standing.

Affidavits, employee loyalty.

432

Agriculture, Secretaries of (table) -

959

Agriculture and Forestry, Committee on. See Committees,