1. Progress in meteorological instrumentation, 1920-1950;Spilhaua;Bull. Am. Meteorol. Soc.,1950
2. Meteorological sounding systems;Haig;Bull. Am. Meteorol. Soc.,1958
3. The constant elevation free-balloon flights from Fort Omaha;Meisinger;Monthly Weather Rev.,1919
4. Toy balloon “races” from Brighton;Harries;Meteorol. Mag.,1923
5. Diffusion over distances ranging from 3 to 86 kilometers;Richardson;Mem. Roy. Meteorol. Soc.,1925