Means of Transportation 161 Transportation by man at points of transshipment. Along the water- front and in the freight houses of cities like New York, Chicago, Phil- adelphia, St. Louis, and Seattle, thousands of longshoremen and freight handlers transship goods from one means of transportation to another. If a strike in New York causes them to cease pushing their slender trucks and lifting the countless boxes, barrels, bales, bags, crates, and kegs, freight may be held up all over the country and even in foreign ports, and factories may have to shut down for lack of raw material. Man power for transportation in factories. In the factories new materials and parts of unfinished articles are continually being carried from workman to workman. In a shoe factory at Lynn or Brockton, for example, some men carry piles of leather on their shoulders, others push little trucks loaded with soles, and still others shove racks filled with shoes. The modern factory does as much of this work as possible by means of elevators, belts, endless chains of buckets, small motor trucks, and other devices, but even these have by no means done away with the necessity for man power. Man power for transportation to the consumer. Lastly, man carries all sorts of products on the last lap of their journey and thus delivers them to the consumer. Whether we buy a piano, a new hat, or a squash, somebody’s muscles are used to bring it into the house. Examples of cities where man power is used. Although man de- pends upon his own strength for transportation everywhere, this use is particularly noticeable in certain regions. For instance, at the Fig. 119. The * American coolie’ is the small motor truck, which factories and warehouses use io great advantage for the work that formerly required a number of porters.