"Free Remarks on the Spirit of the Federal Constitution..." is a historical treatise examining the tenets of the Federal Constitution and the practices of the Federal Government in the early 19th century, particularly concerning the contentious issue of slavery. This volume delves into the obligations of the Union regarding the exclusion of slavery from U.S. territories and newly admitted states. Written with a critical eye, the author, believed to be Robert Walsh, scrutinizes the constitutional arguments and governmental actions surrounding slavery, providing insight into the political and moral debates of the era. This work offers valuable perspective for understanding the historical context of slavery and its impact on the development of the United States.