100 Modern Business Geography ~ N UNITED STA™ HORSES NUMBER JAN. | 192¢C aL 2000 ME‘ Fig. 79. On this map showing the distribution of horses in the United States, the concentration at such points as New York and Chicago is due to the large number of draft horses in use. Re- cently the number of horses in the cities has increased because the congestion of traffic destroys the advantage of motor trucks over horse-drawn vehicles. Compare this map with Ficure R0. 5. J. l 2 23 - » New England and the Appalachian region would probably have far more sheep if it were not for sheep-killing dogs. What are the conditions that favor sheep raising in these two sections? Discuss ways and means of lessening the damage done by sheep-killing dogs. Why swine raising is carried on near cheap food crops. The four chief foods used for fattening hogs are corn, barley, potatoes, and skimmed milk. Compare the swine map, Figure 77, with the corn map, Figure 31. To what extent do the two maps agree in the eastern two thirds of the United States? What five states form the heart of the hog belt of the country? What five states form the heart of the corn belt ? Explain this saying: “ More than one third of the American corn crop squeals as it goes to market.” Farmers feed corn to pigs because people prefer pork to cornmeal, and also because ““ pork can better bear the cost of transportation to market than can cornmeal.” Prove the second statement from current market figures. Change the word ““ pork ” to ““ beef ”” and prove from the figures that the statement is still true. What seems to control the distribution of swine, to a large extent, in the western third of the United States? See Figure 44. Turn to the sections and exercises on barley in Chapter Three (page 60) and on potatoes in Chapter Four (page 62): study the maps of these