I am seeking information about American 19th-century type (primarily for text)
and legibility. Other than trade manuals, are there mid-19th century sources
that analyze type-to-leading ratio, or that compare two-column books with
shorter line lengths (similar to newspaper columns) to those using a single
My time period is 1840 to 1890, and I am interested primarily in the 1840s to
1870s. I'd appreciate any sources list members might recommend.