What two prison systems vied for the attention of penal reformers during the first half of the 19th century?

During the
period of reforms in the antebellum era of the United States, there were two systems that were
proposed for prisons.  These two systems were called the Pennsylvania System and the Auburn
System.  While they were competing with one another, they were not completely different from one
another.  They had both similarities and differences.

The major similarity
between the two was that they...