photo of Ingeborg Kühler lecturing about Tubes of the American West, Lubbock, Texas, 15 Nov 2013.

Visiting scholar Ingeborg Kühler lecturing about Tubes of the American West, Lubbock, Texas, 15 Nov 2013.

Additional information at http://arch.ttu.edu/wiki/Tubes_of_the_American_West_:_a_lecture_by_Ingeborg_Kühler