text sources:
Roth, Leland M.. Understanding Architecture: Its Elements, History, and Meaning. New York, NY: Icon Editions, 1993. Print.
Massey reading.
image sources:
http://www.lehman.edu/vpadvance/artgallery/arch/ideas/images/london%20crystal_palace%20int.jpg
http://sharkitecture.tumblr.com/page/2http://www.engineeringcivil.com/wp-content/uploads/2008/04/a-river-runs-through-it-chicago-river-illinois-skyscraper.jpg
href="http://en.wikipedia.org/wiki/File:Crystal_Palace_Great_Exhibition_tree_1851.png#file">http://en.wikipedia.org/wiki/File:Crystal_Palace_Great_Exhibition_tree_1851.png#file
http://www.springfieldmuseums.org/writable/collection/2004-D03-115.jpg
![href="http://en.wikipedia.org/wiki/File:Crystal_Palace_Great_Exhibition_tree_1851.png#file">http://en.wikipedia.org/wiki/File:Crystal_Palace_Great_Exhibition_tree_1851.png#file](http://www.blogger.com/href=%22http://en.wikipedia.org/wiki/File:Crystal_Palace_Great_Exhibition_tree_1851.png#file">http://en.wikipedia.org/wiki/File:Crystal_Palace_Great_Exhibition_tree_1851.png#file){kind=link}
