[Diploma of Leiden University 1857] Rector et Senatus Academiae Lugduno-Batavae (…) Joannes Petrus Nicolaus Land, Delfensis, (…)Theologia (…) de Carmine Jacobi Gen. XLIX, (…) Joannem Petrum Nicolaum Land, Theologiae Doctorem (…) Diem V Octobris MDCCCLVII (1857). With signatories of Kist, Prins and two others.