2nd Internship of Frederich Ed. Diekmann2nd Internship of Gerardus Graatsma2nd Internship of Johannes L. Fr. van Hell2nd Internship of Jacobus Johannes Heijmans5e Internship of Louis Halberstadt2nd Internship of Johannes Franciscus Beekman3th Internship of Johannes Gerardus Kat4th Internship of Jacob Kaiser2nd Internship of Hendrik Hoogeweg3th Internship of Martinus Lang2nd Internship of Willem Alexander Koppijn2nd Internship of Gerardus Johannes Hendrikus Alberts2nd Internship of Wijnand Kuiper4th Internship of Willem Gerardus Balthazar Maurer3th Internship of Johannes Wilhelmus Maurer5e Internship of Dirk van Rietschoten4th Internship of Johannes Ruiter2nd Internship of Dirk Jan Jacob Snabilié2nd Internship of Petrus de Soet2nd Internship of Christiaan Tieman3th Internship of Pieter Vaartjes2nd Internship of Gerardus H. Vrybergen2nd Internship of Wilhelmus Joh. Coelman