Subject
- Holske, Clarence E.10
- Kindertransports (Rescue operations)10
- Note-taking10
- Numerical calculations10
- United States. Immigration and Naturalization Service10
- American Red Cross9
- Birthdays9
- Crystallography9
- Horstmann, August Friedrich, 1842-19299
- Mittasch, Alwin, 1869-19539
- Neumann, Elisabeth9
- Nobel Prizes9
- Notgemeinschaft der Deutschen Wissenschaft9
- Ollendorff, H. G. (Hans Gerhard), 1907-19969
- Voyages and travels9
- Walden, Paul, 1863-19579
- Women in science9
- X-rays9
- Zadek, Liselotte9
- Abegg, R. (Richard), 1869-19108