What was advertised in a colonial American newspaper 250 years ago today?

“LONDON BOOK-STORE, North-side of KING-STREET, Boston.”

Like many other printers in eighteenth-century America, John Mein and John Fleeming took advantage of publishing a newspaper to insert advertisements for their own goods and services. In addition to a note in the colophon advising prospective clients that “All Manner of Printing-work performed at the most reasonable Rates” at their printing office in Newbury Street, the partners included two advertisements for books they sold in the May 2, 1768, edition of the Boston Chronicle. One appeared in the standard issue and the other in the supplement that accompanied it.

The first did not deviate significantly from the length of most other advertisements in their newspaper. It promoted their pamphlet that collected together John Dickinson’s “Letters from a Farmer in Pennsylvania,” proclaiming that each was “Printed exactly from the Philadelphia papers, in which these Letters were first published.”

The second occupied significantly more space. In it, Mein published a book catalog that listed many of the titles from the “very GRAND ASSORTMENT of the BEST BOOKS in every branch of POLITE LITERATURE, ARTS, and SCIENCES” in stock at the London Book-Store on King Street. This advertisement filled an entire page as well as the first column of the next page, four of the twelve columns in the supplement.

Full-page advertisements were rare but not unknown in the 1760s. Still, scholars of advertising and printing history must be careful when distinguishing among such advertisements, especially when working primarily with digitized sources. No matter the actual size of an original, databases of digitized newspapers standardize it to the size of the screen. When scholars print those sources they are once again standardized when remediated, this time to an 8.5×11 sheet of office paper. Thus a page from the May 2, 1768, edition of the Boston Chronicle appears to be the same size as a page from the May 2, 1768, edition of the Boston Evening-Post.

Yet that was not the case. The production process created material texts of two different sizes. The Boston Evening-Post, like most other newspapers printed in the colonies at the time, was a folio newspaper. In other words, each issue consisted of four pages created by printing two per side and folding a broadsheet in half. The Boston Chronicle, on the other hand, was a quarto newspaper. It had been folded once again, yielding eight pages from a single broadsheet rather than just four. The pages were smaller, changing the experience of carrying and reading the newspaper.

This also changed the proportion of space constituted by a single page in quarto-sized newspapers. In standard issues, each page accounted for one-eighth rather than one-quarter of the content. In supplements, each page accounted for one-quarter rather than one-half. This does not diminish the significance of Mein and Fleeming devoting so much space in the May 2, 1768, edition of the Boston Chronicle to their own advertisements, especially since the full-page advertisement in the supplement flowed through an entire column on a subsequent page. At the same time, however, the magnitude of this innovation must be measured against the size of the actual page rather than the deceptive size of the remediated image. The publishers created a spectacle, but since a full-page advertisement required less space in their newspaper than in most others they also left room for news items and paid notices.