The Founders' Constitution
Volume 2, Article 1, Section 8, Clause 2, Introduction
http://press-pubs.uchicago.edu/founders/documents/a1_8_2s11.html
The University of Chicago Press
Article 1, Section 8, Clause 2
SEE ALSO:
Generally 1.8.5; 1.10.1
The Founders' Constitution
Volume 2, Article 1, Section 8, Clause 2, Introduction
http://press-pubs.uchicago.edu/founders/documents/a1_8_2s11.html
The University of Chicago Press