Diary of John Quincy Adams, volume 2
Training day for the alarm list. From 16 to 60 years the inhabitants of this Common-wealth, are subjected to the duties of militia-men: As a student of Harvard University, I shall be exempted for three years: for all the sons of Harvard are considered as students at that seminary untill they commence masters of arts.
This forenoon I finish'd the first volume of Robertson's Charles V. and as I read now in connection with my studies, I shall not proceed with the other volumes. In the afternoon I took up Vattels' law of nature and of nations.1
Emmerich de Vattel, Le droit des gens; ou, principes de la loi naturelle, appliqués à la conduite et aux affaires des nations et des souverains, Leyden, 1758, and subsequent English translations. Presumably in this and other cases, JQA was using Parsons' law books. The copy known to have been owned by an Adams at this time was a French edition, Amsterdam, 1775, given to JA by C. W. F. Dumas in 1781.