APPENDIX IV

WEIGHTS AND MEASURES.

The metric system is legally in force in Mexico. The following tables may be found useful in converting customary units into metric, and vice versa.

Many of the old units of weights and measures are also in use in certain parts of Mexico.

The following are some of the more common of these old units:

APPENDIX V.-POSTAL SERVICE

MEXICAN POSTAL TARIFF

FIRST CLASS (Letters and all sealed matter)--For each 20 grams or fraction: Urban delivery, 5 centavos. Mexico, Spain, or any country of the American Continent, 10 centavos. Other countries of the Postal Union, 20 centavos. Postcards: Urban delivery, 2 centavos; Mexico, Spain, and all countries of the American Continent, 4 centavos; other countries of the Postal Union, 12 centavos.

SECOND CLASS (Group I-Periodicals and registered publications of a current nature. Group 11-Certain publications of minor importance, which contain novels and other literary works printed on the installment plan.) Group I— For each 500 grams or fraction: Urban delivery, Mexico, Spain, and any country of the American Continent, 3 centavos. Group II-Double the rate specified for Group I.

THIRD CLASS (Books, catalogues, and printed matter in general not mailed by publishers.) For each 100 grams or fraction: Urban delivery, Mexico, Spain, and all countries on the American Continent, 2 centavos.

FOURTH CLASS (Samples without value.)—For each 100 grams or fraction (limit weight 30 grams): Urban, Mexico, Spain and countries on the American Continent, 2 centavos.

THIRD AND FOURTH CLASSES (Mixed Matter) -For each 100 grams or fraction (limit 250 grams): Urban, Mexico, Spain and countries on the American continent, 2 centavos.

FIFTH CLASS (Parcel Post)-Limit for domestic offices reached by rail or water communication, 10 kilograms; for all other offices, 5 kilograms. The unit for all parcel post rates is 50 grams or fraction. The domestic rate is determined by zones, as follows: Urban and first zone (50 grams or fraction), 10 centavos; second zone, 15; third zone, 20; fourth zone, 25; United States or possessions, 25. (Limit weight 10 kilograms.)

REGISTRY FEE-For parcels in domestic postal service, 10 centavos. All other mail, 20 centavos.

MONEY ORDERS (Domestic or Foreign):

SPECIAL DELIVERY: First, Third and Fourth Classes: 20 centavos each piece.

CIRCULAR LETTERS OF CREDIT: These are issued in amounts of from 100 to 2,000 pesos by all important postoffices and are payable in any postoffice of the country. The rate is one per cent of the value.

Articles which are admitted to the domestic mails of the United States will be admitted under the same conditions to the mails for Mexico, except that printed matter, commercial papers, and bona fide trade samples are transmissible in the regular mails at the postage rate and subject to the conditions applicable to those articles in Mexican mails. Sealed packages other than letters in their usual and ordinary form are unmailable.

Packages of merchandise may be sent to Mexico at the postage rate of 1 cent for each ounce or fraction for packages not weighing more than 4 ounces, and at the rate of 12 cents for each pound or fraction for packages exceeding 4 ounces in weight up to 4 pounds 6 ounces. Parcels for Mexico must be accompanied with customs declarations regardless of their weight. Mailable merchandise may also be sent by foreign parcel post. (See below.) Packages of merchandise cannot be insured or sent C. O. D., but they may be registered. PARCEL POST REGULATIONS

Postage rate..
Limit weight.

12 cents per lb. or fraction .22 lbs.

Maximum Dimensions..... Combined length and girth 72 in., max. length, 36 in. Customs Declaration required. Parcel cannot be insured but may be registered. Maximum indemnity for parcels under 11 lbs. is approximately $4.80.

APPENDIX VI

TREATIES BETWEEN THE UNITED STATES AND MEXICO1

1828.a

TREATY OF LIMITS.

Concluded January 12, 1828; ratification advised by the Senate April 4, 1832; ratified by the President April 5, 1832; ratifications exchanged April 5, 1832; proclaimed April 5, 1832.

I. Boundary.

II. Boundary line.

ARTICLES.

III. Commissioners.
IV. Ratification.

The limits of the United States of America with the bordering territories of Mexico having been fixed and designated by a solemn treaty, concluded and signed at Washington on the twenty-second day of February, in the year of our Lord one thousand eight hundred and nineteen, between the respective Plenipotentiaries of the Government of the United States of America on the one part, and of that of Spain on the other; and whereas the said treaty having been sanctioned at a period when Mexico constituted a part of the Spanish monarchy, it is deemed necessary now to confirm the validity of the aforesaid treaty of limits, regarding it as still in force and binding between the United States of America and the United Mexican States:

With this intention, the President of the United States of America has appointed Joel Roberts Poinsett their Plenipotentiary, and the President of the United Mexican States their Excellencies Sebastian Camacho and José Ygnacio Esteva;

And the said Plenipotentiaries, having exchanged their full powers, have agreed upon and concluded the following articles:

ARTICLE I.

as

The dividing limits of the respective bordering territories of the United States of America and of the United Mexican States being the same were agreed and fixed upon by the above-mentioned treaty of Washington, concluded and signed on the twenty-second day of February, in the year one thousand eight hundred and nineteen, the two high contracting parties will proceed forthwith to carry into full effect the third and fourth articles of said treaty, which are herein recited, as follows:

ARTICLE II.

The boundary line between the two countries west of the Mississippi shall begin on the Gulf of Mexico, at the mouth of the river Sabine, in the sea, continuing north along the western bank of that river to the thirty-second degree of latitude; thence by a line due north to the degree of latitude where it strikes the Rio Roxo of Natchitoches, or Red River; then following the course of the Rio Roxo westward to the degree of longitude one hundred west from London and twenty-three from Washington; then crossing the said Red River, and running thence by a line due north to the river Arkansas; thence, following the course of the southern bank of the Arkansas, to its source, in latitude forty-two north; and thence, by that parallel of latitude, 1 Reprinted from Malloy, Treaties and Conventions, I. 1082-1205.

aThe commission referred to in this treaty was never appointed. The accession of Texas and the war between the United States and Mexico rendered the treaty inoperative.