Books by Lowell institute lectures:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Lowell institute lectures, 1917: The warfare of to-day (Houghton Mifflin Co., 1918), also by Paul Azan and Julian Lowell Coolidge (page images at HathiTrust)
Find more by Lowell institute lectures at your library, or elsewhere.