Page:Statesman's Year-Book 1921.djvu/1130

 1078

MEXICO

meter? ; 4> concrete tanks with a capacity of 43,718 cubic meters ; 15earthern reservoirs with a capacity of S, 506, 658 cubic meters ; and one cement reservoir, with a capacity of 136,740 cubic meters. On the same date there were existing 113 pipa lines with a total length of 1,420,970 meters and a conducting capacity of 457,216 cubic meters.

Petroleum was produced as follows : — In 1912, 16,538,215 barrels ; in 1913, 25,696,291 barrels ; in 1914, 26,235,403 barrels ; in 1915, 33,910,508 barrels ; in 1916. 40,545,712 barrels ; in 1917, 55,292,770 barrels ; in 1918, 3,838,326 barrels ; in 1919, 92,402,055 barrels.

Mining is the principal industry in Mexico. It is carried on in 24 of the 31 States and Territories, nearly all the mines yielding silver either alone or in combination with other ores. The following table shows the quantities of mineral products for 1918, 1919, and 1920 :—

Metals

1918

1919

1920

Kilos

Kilos

Kilos

Gold

25,313

23,586

23,370

Silver.

1,944,542

2,049,898

1,979,972

Copper ....

70,223,454

56,172,235

46,056,900

Lead

98,837,154

71,375,968

121,434,066

Zinc

20,698,995

11,559,685

14,363,057

Antimony

3,278,546

470,738

1,572,376

Tin ...

13,537

1,588

—

Tungsten

149,486

21,970

34,917

Molybdenum

27,371

1,767

648

Manganese.

2,878,383

2,294,227

838,624

Mercury

163,598

118,940

77,229

Arsenic

1,881,011

2,246,378

1,198,806

Amorphous graphite

6,190,849

4,023.015

2,991,529

Coal is produced only in the State of Coahuila. The output is estimated at 900,000 tons annually. Opals are mined in Queretaro.

Commerce.

The trade of Mexico for 4 years is shown as follows : —

Year

Imports

Exports

29,798,912 30,040,561

Year

Imports

Kxports

1912 1913

i 18,260,231 19,577,233

1918 1916

16,461,090 26,517,870

36,730,545 •12,446,247

The imports and exports for 1918 were classified as follows : —

Imports

Mexican Dollars

Exports

Mexican Dollars

Animal products

19,981,871

Animal products

19,569,701

Vegetable products

87,985, 9Hti

Vegetable products

126,937,322

Mineral products.

28,808,919

Mineral products

213,932,342

Textile and other mauu-

Manufactured products

4,866,086

factures ....

28,853,895

Chemical products

10,688,.

265,178,706

424,462,471