In a previous post I discussed two lithographs from the 1873 edition of Warren’s geography. One of the more fascinating illustrations is one explaining the desert mirage. Here is the discussion and image from the text.

Excerpt from D. M. Warren, An Elementary Treatise on Physical Geography. Revised by A. von Steinwehr. (Philadelphia, Cowperthwait & Co., 1873), p. 67.

to be continued …