Jan H. Dort's work Ad:r>iaan Blaauw Meritus Emeritus Harry van der Laan 21 Jan Hendrik Dort and Dutch astronomy H. G. van Bueren 31 Dort's scientific importance on a world-wide scale Bengt Stromgren 39 Gart and international co-operation in astronomy D. H. Sadler 45 Reminiscences of the early nineteen-twenties Peter Van de Kamp 51 The first five years of Jan Dort at Leiden, Bart J. Bok 1924-1929 55 Early galactic structure Per Olof Lindblad 59 Early galactic radio astronomy at Kootwijk C. A. Muller 65 W. N. Christiansen Dort and his large radiotelescope 71 Ten years of discovery with Dort's Synthesis Radio Telescope R. J. Allen and R. D. Ekers 79 Gort's work on comets Maarten Schmidt 111 The evolution of ideas on the Crab Nebula L. WoUjer 117 Gort's work reflected in current studies of galactic CO W. B. Burton 123 On high-energy astrophysics V. L. Ginzburg 129 Dort and extragalactic astronomy Margaret and Geoffrey Burbidge 141 Birthday wishes John A. and Janette Wheeler 151 The Earth and the Universe Abraham H. Oort 153 The challenge of Jan Dort J. H. Bannier 157 Jan Dort at the telescope Fjeda Walraven 161 Gart Westerhout Personal recollections 163 Style of research Henk van de Hulst 165 Manuscript Jan H.

Springer Book Archives

Jan H. Oort's work.- Meritus Emeritus.- Jan Hendrik Oort and Dutch astronomy.- Oort's scientific importance on a world-wide scale.- Oort and international co-operation in astronomy.- Reminiscences of the early nineteen-twenties.- The first five years of Jan Oort at Leiden, 1924-1929.- Early galactic structure.- Early galactic radio astronomy at Kootwijk.- Oort and his large radiotelescope.- Ten years of discovery with Oort's Synthesis Radio Telescope.- Oort's work on comets.- The evolution of ideas on the Crab Nebula.- Oort's work reflected in current studies of galactic CO.- On high-energy astrophysics.- Oort and extragalactic astronomy.- Birthday wishes.- The Earth and the Universe.- The challenge of Jan Oort.- Jan Oort at the telescope.- Personal recollections.- Style of research.- Manuscript.- Bibliography of Jan Hendrik Oort 1922-1979.- Subject Index to Oort's Bibliography.- General Subject Index.- Name Index.