3th Internship of Nanning Hogendorp2nd Internship of Bernardus J.M. Landa4th Internship of Casper Christiaan Maurer3th Internship of Willem Niepoth2nd Internship of Theodorus Schrimpf2nd Internship of Marinus Smit3th Internship of Joh_s Hendr. Maria Schaefer1st Internship of Johan Frederik Hendrik Pieter Schnuck2nd Internship of Wilhelmus Nicolaas Tollenaar1st Internship of Christiaan Vegting2nd Internship of Richardus Arn. Corn. de Soet3th Internship of Johannes Posthumes Hendrik Vlietman