Written in 1924, by Kenneth F Matthews (or Mathews), this is a wonderful essay by an engineering student studying in Baltimore.
This paper traces the history of the shot tower built in Baltimore in 1828. It describes its construction and includes information on the making of shot, the making of bricks, as well as diagrams and other illustrations.
This paper was prepared as part of Matthews' initiation into Phi Mu, an engineering honor society.
Pay special attention the the poem, The Shot Tower,in the front-piece written by Lizette Woodworth Reese. While I don't find it a great or even good poem, it does tell a story of a much different time. At time when Baltimoreans were facing much different issues than they are today, it illustrates the fretting over wars and conflict.