Modern business geography

Bibliographic data

Monograph

Identifikator:: 1830562916

URN:: urn:nbn:de:zbw-retromon-217337

Document type:: Monograph

Author:: Huntington, Ellsworth http://d-nb.info/gnd/117070092; Cushing, Sumner W.

Title:: Modern business geography

Place of publication:: New York [usw.]

Publisher:: World Book Company

Year of publication:: 1930

Scope:: VIII, 352 S.; Ill., graph. Darst.

Digitisation:: 2022

Collection:: Economics Books

Usage license:: Get license information via the feedback formular.

Chapter

Document type:: Monograph

Structure type:: Chapter

Title:: Part one. The field of primary production

Collection:: Economics Books

128 Modern Business Geography Near coal mines may be seen great piles of refuse material called culm. This refuse con- tains slate and bits of coal. The thrifty Europeans mix culm with coal tar and make small bricks, “ briquettes,” to burn. Cities having large manufacturing populations, if situated near enough to the culm piles to secure cheap transportation, would prob- ably be glad to buy these briquettes. Name some such cities. Would your commun- ity furnish a good market for this cheap substitute for coal ? In their eagerness for profits many companies abandon a worked mine and seek a new one as soon as the most acces- sible coal seams are exhausted. After an abandoned mine has caved in, it usually does not pay to reopen it for the small amount of coal left there. How does more effective min- ing machinery help to remedy this waste? Coke, the fuel necessary for iron smelting, is made by baking coal in great ovens. Two kinds of ovens are used, the * beehive” and the “retort.” In the beehive oven, coke is the only product. In the retort oven the valuable gases are saved, and the following products are obtained in addition to the coke: coal tar, ammonia, benzol, illuminating gas, graphite, oils, dyestuffs, disinfectants, explosives, and substances used in medicine. Find out how many of these by-products are used in your home. How the civilized world depends upon petroleum. Is petroleum used in the crude state? Consult an encyclopedia or a book on petroleum. Suppose that there were no more petroleum in the world. Consider in how many ways your life would be affected by lack of the following products made from petroleum: gasoline, naphtha. benzine. kerosene, lubricants, oils, vaselin, parrafin. In 1929 the United States consumed almost a billion barrels of petroleum. Some persons think that this is at least one twentieth of our untouched 2 Fig. 101. A “gusher” in the Sunset oil field of Cali- fornia. The drillers struck a deposit of oil and gas under great pressure, and a column of oil and gas shot up 150 feet. For several weeks the well lowed at the rate of 40.000 barrels of oil a day. E. 1 2 2

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