no.1. Effects of tropical cyclone rainfall on the distribution of precipitation over the eastern and southern United States. -- no.2. Line parameters for the 1.9 and 6.3 micro water vapor bands. -- no.3. Circulation of shelf waters off the Chesapeake Bight surface and bottom drift of Continental Shelf waters between Cape Henlopen, Delaware, and Cape Hatteras, North Carolina, June 1963-December 1964. -- no.4. A survey and analysis of normal ionospheric absorption measurements obtained from radio pulse reflections