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length of the building, comes back on the second 

 floor, and leaves ling at the far end of 



the ground floor. In both cases, there should be 

 a continuous movement, free from interferences 

 or congestion. 



kind of material, its weight and bulk, and 

 the nature of the work to be done on it have a 

 marked effect on the layout. A type of building 

 and location which would be absolutely imprac- 

 tical for one industry may be the ideal for an- 

 other. An ore concentrator, where gravity is 

 used to move great quantities of heavy material, 

 will stretch down the side of a hill so steep you 

 can hardly climb it, and may be located in Mon- 

 tana or Mexico near its source of supply. A 

 sugar refinery may be ten or twelve stories high, 



h nearly blank walls and few windows, and 

 located on the water front at a seaport. A cotton 



1 or a shoe shop will be in an industrial center; 

 will be four or five stories high, long and narrow, 

 and will have many windows to give good light- 

 ing. On the other hand, a machine shop which 

 is handling heavy material will frequently be a 

 one-story building, covering a wide area, 

 a saw-tooth roof to give light over the whole 

 floor. Each of these types is especially suited to 

 the particular industry and the character of the 

 goods to be handled. 



Two General Types of Industries. There are 

 two general types of industries: vi/.. continuous 

 and assembling. A continuous industry is one in 

 which usually only one kind of raw material is 



