Scalia used a reference from the book “Law of Nations” in his written remarks regarding the case Hellar v DC, right to bear arms SCOTUS case. References:
http://naturalborncitizen.wordpress.com/2008/12/11/natural-born-citizen-defined-by-14th-amendment-framers-and-in-treatise-relied-on-by-scalia/
YES! That’s it. Thank you very much, there was also (IIRC) a time when he referenced it in a speech. But I’m not smart and could be wrong, often am.