NILES' NATIONAL REGISTER, Baltimore, May 14, 1842 

* Dorr Rebellion - Rhode Island arsenal attack

Page 5 has news headed: "Rhode Island" which is consumed for information on the Dorr Rebellion, including an address by the rival governor Thomas Dorr, prefaced with: "The revolutionary legislature passed an act for the registration of votes throughout the state; an act repealing resolutions passed by the (charter) general assembly..." and more.
Sixteen pages, 8 1/2 by 12 inches, great condition.

As noted in Wikipedia, this title: "...(was) one of the most widely-circulated magazines in the United States...Devoted primarily to politics...considered an important source for the history of the period."