Miscellaneous work from Germany before 1932
Globular clusters
Extragalactic nebulae
Nova Aquilae 1918
Novae & Nova Herculis
Supernovae
Supernovae in galaxies
Variables in field around NGC 6522 (assisted by S. I. Gaposchkin)
Supernova Ophiuchi 1604, Cygnus variables, C. Caratheodory: Geodetic Differential Equations, and misc. materials
Resolution of galaxies M31, 32, NGC205, 147, 185; Notes on Population I & II Cepheids (1950-1960); Lectures (1950-1958)
Letters after 1945; Papers (1950-1955); "A Discussion of the Ursa Minor Dwarf Galaxy Based on Plates Obtained by Walter Baade," by van Agt; Letters re optical identification on various radio soruces (1951-1952)
Large charts related to R Aquarii.