DANIEL BURNHAM. Railway Exchange. Reasoned Ornament.

A small square resolves the geometries and identifies the center of each tier of bay windows at the Railway Exchange.  Of course it makes sense. But, (scroll down) what's up with the circles??

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They are reserved for the centerline of the building. EW and NS. 

Take nothing for granted in turn-of-the century Chicago.  Assume nothing random. Each geometry speaks.

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