NILES' WEEKLY REGISTER, Baltimore, Aug. 13, 1836  

* Second Seminole War - Florida
* Sam Houston & Santa Anna

The front page has: "Mexico & Texas" with mention that the Mexicans will not fight until fall & that a treaty between Santa Anna & General Sam Houston had reached Mexico. Further particulars as well.
Other items include: "United States & Mexico" "Revolt of Negroes at Havana" "United States & Mexico" and much more.
Perhaps the most notable article is a detailed account of the Battle of Micanopy in Florida, part of the Second Seminole Indian War, taking  nearly a full page.
Sixteen pages, 6 by 9 1/2 inches, very nice condition.

Background: The August 13, 1836, issue of Niles' Weekly Register serves as a critical primary source documenting a period of intense territorial transition and racial conflict that redefined the borders of North America. Centrally, it captures the fragile aftermath of the Texas Revolution, specifically the diplomatic fallout of the Treaties of Velasco; by reporting on the treaty between Santa Anna and Sam Houston, the Register highlights the precarious "republic" status of Texas, which Mexico refused to formally recognize, setting the stage for a decade of border skirmishes and the eventual Mexican-American War. Simultaneously, the detailed coverage of the Battle of Micanopy during the Second Seminole War illustrates the brutal reality of the U.S. government’s Indian Removal policy, showcasing the military’s struggle to subdue indigenous resistance led by figures like Osceola in the Florida wilderness. These events, combined with reports of slave unrest in Havana, provide a vivid snapshot of a nation grappling with the volatile intersections of manifest destiny, institutional slavery, and the violent displacement of native populations—all recorded with the meticulous, primary-document focus that made Hezekiah Niles’ publication the definitive "paper of record" for the 19th century.

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."