Room in the Academy Building of Leiden University Room in the Academy Building of Leiden University Berthold and Harvey Sun hitting the university seal View of the Huygens and Gorlæus Laboratories of Le… Hall of the Old Library of Leiden University The Leiden Observatory at dusk Science for trees The Academy Building of Leiden University Science for trees Lecture hall 1A20 in the Pieter de la Court buildi… Lecture hall 003 of the Lipsius Building of Leiden… Scissors Lecture hall C131 of the Kamerlingh Onnes Building… Lecture hall C131 of the Kamerlingh Onnes Building… Havinga Lecture hall in the Gorlæus Lab of Leiden… Portrait Havinga Lecture hall in the Gorlæus Lab of Leiden… Lecture hall 005 of the Lipsius building of Leiden… Havinga Lecture hall in the Gorlæus Lab of Leiden… Lecture hall 005 of the Lipsius building of Leiden… Escher View of the Rapenburg from a window View of the front yard of the Kamerlingh Onnes Bui… Sylvius Laboratory of Leiden University School bus Stone rooster Pavlov View from the Pieter de la Court-gebouw View from the Pieter de la Court-gebouw View from the Pieter de la Court-gebouw View from the Pieter de la Court-gebouw Entrance to the Snellius building of Leiden Univer… Chairs Zoötomisch Laboratorium Premtime radio at Leiden University Restored Observatory of Leiden University Observatory of Leiden University – gears Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Leidse Sterrewacht Observatory of Leiden University – Universal joint Stone wave Hortus Botanicus of Leiden University Hortus Botanicus of Leiden University – Von Siebol… Hortus Botanicus of Leiden University – Nephentes Hortus Botanicus of Leiden University Hortus Botanicus of Leiden University – Dormant Pl… Hortus Botanicus of Leiden University – Plant plan… Temporary entrance to the Pieter de la Court build… Temporary entrance to the Pieter de la Court build… View of the Kaiserstraat Office and colleague Academy Building of Leiden University Office Straw Room in the Academy Building of Leiden University Leiden University Library Union Carbide View of the Doelensteeg in Leiden Old biology lab of Leiden University Old biology lab of Leiden University Siren on the old Pathology Lab of Leiden Universit… Old Pathology Lab of Leiden University Old Pathology Lab of Leiden University View of the Witte Singel/Doelen Complex of Leiden… A view of the interior of the old Pathology Lab of… Meeting room in the Academy Building of Leiden Uni… View of the old Pathology and Anatomy Lab of Leide… An entrance of the old Pathology Lab of Leiden Uni… Fireplace in the Curators's Room in the Academy Bu… The Rector's Room in the Academy Building of Leide… An entrance of the old Pathology Lab of Leiden Uni… Painting in the Curators's Room in the Academy Bui… Old Pathology Lab of Leiden University Ornament in the Curators's Room in the Academy Bui… Painting in the Curators's Room in the Academy Bui… Old sign of the Biology department of Leiden Unive… Electric switchboard of the old Pathology Lab of L… All systems down in the old Pathology Lab of Leide… Old pictures of my office Old pictures of my office Old pictures of my office Old pictures of the Pathology Lab Old pictures of my office Old Anatomy Lab of Leiden University Old Anatomy Lab of Leiden University Doorbell of the old Pathology Lab of Leiden Univer… Old Anatomy Lab of Leiden University Old Anatomy Lab of Leiden University Old Anatomy Lab of Leiden University Old Pathology Lab of Leiden University Old Pathology Lab of Leiden University Doors of the old Pathology Lab of Leiden Universit… Old Pathology Lab of Leiden University – Bell Sign on the old Pathology Lab of Leiden University Old Pathology Lab of Leiden University The old Pathology Lab of Leiden University Old Anatomy Lab of Leiden University Old Pathology Lab of Leiden University Former Anatomy and Pathology Laboratories of Leide… Former Pathology Laboratory of Leiden University Former Pathology Laboratory of Leiden University Former Anatomy Lab of Leiden University Former Anatomy Laboratory of Leiden University Former Anatomy Lab of Leiden University Former Anatomy Laboratory of Leiden University Former Pathology Laboratory of Leiden University Former Pathology Lab of Leiden University Former Pathology Laboratory of Leiden University Former Pathology Lab of Leiden University Former Anatomy Lab of Leiden University Former Pathology Lab of Leiden University Former Pathology Laboratory of Leiden University